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794 lines
416 KiB
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794 lines
416 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
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<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="B23K" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>SOLDERING OR UNSOLDERING</text></title-part><title-part><text>WELDING</text></title-part><title-part><text>CLADDING OR PLATING BY SOLDERING OR WELDING</text></title-part><title-part><text>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</text></title-part><title-part><text>WORKING BY LASER BEAM </text><reference><text>making metal-coated products by extruding metal <class-ref scheme="cpc">B21C23/22</class-ref>; building up linings or coverings by casting <class-ref scheme="cpc">B22D19/08</class-ref>; casting by dipping <class-ref scheme="cpc">B22D23/04</class-ref>; manufacture of composite layers by sintering metal powder <class-ref scheme="cpc">B22F7/00</class-ref>; arrangements on machine tools for copying or controlling <class-ref scheme="cpc">B23Q</class-ref>; covering metals or covering materials with metals, not otherwise provided for <class-ref scheme="cpc">C23C</class-ref>; burners <class-ref scheme="cpc">F23D</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph> This subclass <u>covers</u> also electric circuits specially adapted for the purposes covered by the title of the subclass. </note-paragraph><note-paragraph> In this subclass, the following term is used with the meaning indicated: <subnote type="bullet"><note-paragraph>"soldering" means uniting metals using solder and applying heat without melting either of the parts to be united</note-paragraph></subnote></note-paragraph></note><note type="warning"><note-paragraph warning-type="ipc-not-used">The following IPC groups are not in the CPC scheme. The subject matter for these IPC groups is classified in the following CPC groups: <table><row><entry><class-ref scheme="ipc">B23K35/04</class-ref> - <class-ref scheme="ipc">B23K35/20</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">B23K35/0205</class-ref> - <class-ref scheme="cpc">B23K35/0294</class-ref></entry></row><row><entry><class-ref scheme="ipc">B23K35/363</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">B23K35/3601</class-ref> - <class-ref scheme="cpc">B23K35/3618</class-ref></entry></row></table></note-paragraph><note-paragraph>In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.</note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="B23K1/00" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Soldering, e.g. brazing, or unsoldering </text><reference><text>essentially requiring the use of welding machines or welding equipment, <u>see</u> the relevant groups for the welding machines or welding equipment</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K1/00" definition-exists="true" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Soldering, e.g. brazing, or unsoldering </text><reference><text><class-ref scheme="cpc">B23K3/00</class-ref> takes precedence; characterised only by the use of special materials or media <class-ref scheme="cpc">B23K35/00</class-ref>; dip or wave soldering in the manufacture of printed circuits <class-ref scheme="cpc">H05K3/34</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/0002" definition-exists="false" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Soldering by means of dipping in a fused salt bath</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/0004" definition-exists="false" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Resistance soldering</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/0006" definition-exists="false" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Exothermic brazing</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/0008" definition-exists="false" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for particular articles or work</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/001" definition-exists="false" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sealing small holes in metal containers, e.g. tins</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/0012" definition-exists="false" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0012</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Brazing heat exchangers</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/0014" definition-exists="false" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0014</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Brazing of honeycomb sandwich structures</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/0016" definition-exists="false" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Brazing of electronic components</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/0018" definition-exists="false" ipc-concordant="B23K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Brazing of turbine parts</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/002" definition-exists="false" ipc-concordant="B23K1/002" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Soldering by means of induction heating</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/005" definition-exists="false" ipc-concordant="B23K1/005" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Soldering by means of radiant energy</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/0053" definition-exists="false" ipc-concordant="B23K1/005" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>soldering by means of I.R.</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/0056" definition-exists="false" ipc-concordant="B23K1/005" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/0056</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>soldering by means of beams, e.g. lasers, E.B.</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/008" definition-exists="false" ipc-concordant="B23K1/008" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Soldering within a furnace </text><reference><text><class-ref scheme="cpc">B23K1/012</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/012" definition-exists="false" ipc-concordant="B23K1/012" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/012</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Soldering with the use of hot gas</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/015" definition-exists="false" ipc-concordant="B23K1/015" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/015</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Vapour-condensation soldering</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/018" definition-exists="false" ipc-concordant="B23K1/018" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/018</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Unsoldering</text></title-part><title-part><text>Removal of melted solder or other residues</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/06" definition-exists="false" ipc-concordant="B23K1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>making use of vibrations, e.g. supersonic vibrations</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/08" definition-exists="false" ipc-concordant="B23K1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Soldering by means of dipping in molten solder</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/085" definition-exists="false" ipc-concordant="B23K1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Wave soldering</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/14" definition-exists="false" ipc-concordant="B23K1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for soldering seams </text><reference><text>making tubes involving operations other than soldering <class-ref scheme="cpc">B21C</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/16" definition-exists="false" ipc-concordant="B23K1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>longitudinal seams, e.g. of shells</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/18" definition-exists="false" ipc-concordant="B23K1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>circumferential seams, e.g. of shells</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/19" definition-exists="false" ipc-concordant="B23K1/19" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/19</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>taking account of the properties of the materials to be soldered</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K1/20" definition-exists="false" ipc-concordant="B23K1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating </text><reference><text>preparation of surfaces in particular ways, <u>see</u> the relevant classes for the treatments or the materials treated, e.g. <class-ref scheme="cpc">C04B</class-ref>, <class-ref scheme="cpc">C23C</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/203" definition-exists="false" ipc-concordant="B23K1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/203</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluxing, i.e. applying flux onto surfaces</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K1/206" definition-exists="false" ipc-concordant="B23K1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K1/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cleaning</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K3/00" definition-exists="true" ipc-concordant="B23K3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods </text><reference><text>materials used for soldering <class-ref scheme="cpc">B23K35/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K3/02" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Soldering irons</text></title-part><title-part><text>Bits</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/021" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flame-heated soldering irons</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/022" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a gaseous fuel</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/023" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a liquid fuel</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/024" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a solid fuel</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/025" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bits or tips</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/026" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Removable soldering bits</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/027" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Holders for soldering irons</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/028" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for cleaning soldering iron tips </text><reference><text><class-ref scheme="cpc">B23K3/027</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/029" definition-exists="false" ipc-concordant="B23K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/029</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Solder or residue removing devices</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/03" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>electrically heated</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0307" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0307</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with current flow through the workpiece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0315" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0315</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Quick-heating soldering irons having the tip-material forming part of the electric circuit </text><reference><text><class-ref scheme="cpc">B23K3/0323</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0323" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0323</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Battery-powered soldering irons</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/033" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising means for controlling or selecting the temperature or power</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0338" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0338</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Constructional features of electric soldering irons</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K3/0346" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0346</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Handles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K3/0353" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0353</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heating elements or heating element housings</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K3/0361" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0361</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Couplings between the handle and the heating element housing</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K3/0369" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0369</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Couplings between the heating element housing and the bit or tip</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0376" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0376</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising carbon heating elements or electrodes </text><reference><text><class-ref scheme="cpc">B23K3/0384</class-ref> and <class-ref scheme="cpc">B23K3/0392</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0384" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0384</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat being generated by an arc</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0392" definition-exists="false" ipc-concordant="B23K3/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0392</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heat being generated by contact resistance</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K3/04" definition-exists="false" ipc-concordant="B23K3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Heating appliances </text><reference><text>soldering lamps or blowpipes <class-ref scheme="cpc">F23D</class-ref>; electric heating in general <class-ref scheme="cpc">H05B</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/043" definition-exists="false" ipc-concordant="B23K3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flame-heated appliances</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/047" definition-exists="false" ipc-concordant="B23K3/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>electric</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0471" definition-exists="false" ipc-concordant="B23K3/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0471</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using resistance rod or bar, e.g. carbon silica</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0473" definition-exists="false" ipc-concordant="B23K3/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0473</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using Joule effect at the place of contact between a rod and the soldering tip</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0475" definition-exists="false" ipc-concordant="B23K3/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0475</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using induction effects, e.g. Kelvin or skin effects</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0476" definition-exists="false" ipc-concordant="B23K3/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0476</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Soldering pliers</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0478" definition-exists="false" ipc-concordant="B23K3/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0478</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising means for controlling or selecting the temperature or power</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/053" definition-exists="false" ipc-concordant="B23K3/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using resistance wires</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K3/06" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Solder feeding devices</text></title-part><title-part><text>Solder melting pans</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/0607" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0607</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Solder feeding devices</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0615" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0615</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>forming part of a soldering iron</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0623" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0623</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for shaped solder piece feeding, e.g. preforms, bumps, balls, pellets, droplets</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/063" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for wire feeding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0638" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0638</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for viscous material feeding, e.g. solder paste feeding </text><reference><text><class-ref scheme="cpc">B23K3/0623</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/0646" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0646</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Solder baths</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0653" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0653</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with wave generating means, e.g. nozzles, jets, fountains</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0661" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0661</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oscillating baths</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0669" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0669</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with dipping means</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K3/0676" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>B23K3/0676</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Conveyors therefor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K3/0684" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0684</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for oscillating the workpiece</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K3/0692" definition-exists="false" ipc-concordant="B23K3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/0692</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with intermediary means for bringing solder on workpiece, e.g. rollers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K3/08" definition-exists="false" ipc-concordant="B23K3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Auxiliary devices therefor </text><reference><text>cleaning pipes or tubes or systems of pipes or tubes, e.g. before soldering, <class-ref scheme="cpc">B08B9/02</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/082" definition-exists="false" ipc-concordant="B23K3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flux dispensers; Apparatus for applying flux</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/085" definition-exists="false" ipc-concordant="B23K3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling, heat sink or heat shielding means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K3/087" definition-exists="false" ipc-concordant="B23K3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K3/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Soldering or brazing jigs, fixtures or clamping means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="B23K5/00" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flame welding or cutting</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K5/00" definition-exists="true" ipc-concordant="B23K5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gas flame welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K5/003" definition-exists="false" ipc-concordant="B23K5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the welding zone being shielded against the influence of the surrounding atmosphere </text><reference><text>selection of media <class-ref scheme="cpc">B23K35/38</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K5/006" definition-exists="false" ipc-concordant="B23K5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for particular articles or work</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K5/02" definition-exists="false" ipc-concordant="B23K5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seam welding </text><reference><text>making tubes involving operations other than welding <class-ref scheme="cpc">B21C</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K5/023" definition-exists="false" ipc-concordant="B23K5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of horizontal seams in assembling vertical plates a welding unit being adapted to travel along the upper horizontal edge of the plates</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K5/026" definition-exists="false" ipc-concordant="B23K5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of non-horizontal seams in assembling non-horizontal plates</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K5/04" definition-exists="false" ipc-concordant="B23K5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using additional profiled strips or the like of welding metal along seam edges</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K5/06" definition-exists="false" ipc-concordant="B23K5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Welding longitudinal seams</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K5/08" definition-exists="false" ipc-concordant="B23K5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Welding circumferential seams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K5/083" definition-exists="false" ipc-concordant="B23K5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding three-dimensional seams</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K5/086" definition-exists="false" ipc-concordant="B23K5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>helicoidal seams</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K5/10" definition-exists="false" ipc-concordant="B23K5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Welding workpieces essentially comprising layers of different metals, e.g. plated workpieces</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K5/12" definition-exists="false" ipc-concordant="B23K5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>taking account of the properties of the material to be welded</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K5/14" definition-exists="false" ipc-concordant="B23K5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of non-ferrous metals </text><reference><text><class-ref scheme="cpc">B23K5/16</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K5/16" definition-exists="false" ipc-concordant="B23K5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of different metals</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K5/18" definition-exists="false" ipc-concordant="B23K5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for purposes other than joining parts, e.g. built-up welding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K5/20" definition-exists="false" ipc-concordant="B23K5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>making use of vibrations, e.g. supersonic vibrations</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K5/213" definition-exists="false" ipc-concordant="B23K5/213" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/213</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preliminary treatment</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K5/22" definition-exists="false" ipc-concordant="B23K5/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Auxiliary equipment, e.g. backings, guides</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K5/24" definition-exists="false" ipc-concordant="B23K5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K5/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for supporting torches </text><reference><text>not restricted to flame welding <class-ref scheme="cpc">B23K37/02</class-ref></text></reference></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K7/00" definition-exists="true" ipc-concordant="B23K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cutting, scarfing, or desurfacing by applying flames </text><CPC-specific-text><reference><text>thermal deburring <class-ref scheme="cpc">B23D79/005</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K7/001" definition-exists="false" ipc-concordant="B23K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for profiling plate edges or for cutting grooves</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K7/002" definition-exists="false" ipc-concordant="B23K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Machines, apparatus, or equipment for cutting plane workpieces, e.g. plates</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K7/003" definition-exists="false" ipc-concordant="B23K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-01-01" status="published"><classification-symbol>B23K7/003</classification-symbol><class-title date-revised="2017-01-01"><title-part><CPC-specific-text><text>Machines, apparatus, or equipment for cutting long articles, e.g. cast stands, plates, in parts of predetermined length</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K7/004" definition-exists="false" ipc-concordant="B23K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Seam tracking</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K7/005" definition-exists="false" ipc-concordant="B23K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K7/006" definition-exists="false" ipc-concordant="B23K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for tubes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K7/007" definition-exists="false" ipc-concordant="B23K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for obtaining tube intersection profiles</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K7/008" definition-exists="false" ipc-concordant="B23K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preliminary treatment</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K7/06" definition-exists="false" ipc-concordant="B23K7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Machines, apparatus, or equipment specially designed for scarfing or desurfacing</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K7/08" definition-exists="false" ipc-concordant="B23K7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by applying additional compounds or means favouring the cutting, scarfing, or desurfacing procedure</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K7/10" definition-exists="false" ipc-concordant="B23K7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Auxiliary devices, e.g. for guiding or supporting the torch </text><reference><text>guiding means applicable to other metal-working machines <class-ref scheme="cpc">B23Q</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K7/102" definition-exists="false" ipc-concordant="B23K7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for controlling the spacial relationship between the workpieces and the gas torch</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K7/105" definition-exists="false" ipc-concordant="B23K7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for particular geometric forms</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K7/107" definition-exists="false" ipc-concordant="B23K7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K7/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for cutting circles</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="B23K9/00" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electric welding or cutting</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K9/00" definition-exists="true" ipc-concordant="B23K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arc welding or cutting </text><reference><text>electro-slag welding <class-ref scheme="cpc">B23K25/00</class-ref>; welding transformers <class-ref scheme="cpc">H01F</class-ref>; welding generators <class-ref scheme="cpc">H02K</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/0008" definition-exists="false" ipc-concordant="B23K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding without shielding means against the influence of the surrounding atmosphere</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0017" definition-exists="false" ipc-concordant="B23K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0017</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using more than one electrode</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/0026" definition-exists="false" ipc-concordant="B23K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for particular articles or work</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0035" definition-exists="false" ipc-concordant="B23K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of thin articles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0043" definition-exists="false" ipc-concordant="B23K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Locally welding a thin plate to a thick piece </text><reference><text>spot arc welding <class-ref scheme="cpc">B23K9/007</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0052" definition-exists="false" ipc-concordant="B23K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0052</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding of pipe panels</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/0061" definition-exists="false" ipc-concordant="B23K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Underwater arc welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/007" definition-exists="false" ipc-concordant="B23K9/007" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spot arc welding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/013" definition-exists="false" ipc-concordant="B23K9/013" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/013</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arc cutting, gouging, scarfing or desurfacing</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0135" definition-exists="false" ipc-concordant="B23K9/013" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0135</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arc saw cutting</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/02" definition-exists="false" ipc-concordant="B23K9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seam welding</text></title-part><title-part><text>Backing means</text></title-part><title-part><text>Inserts</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0203" definition-exists="false" ipc-concordant="B23K9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0203</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Inserts</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0206" definition-exists="false" ipc-concordant="B23K9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of horizontal seams in assembling vertical plates, a welding unit being adapted to travel along the upper horizontal edge of the plates</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0209" definition-exists="false" ipc-concordant="B23K9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0209</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of non-horizontal seams in assembling non-horizontal plates</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0213" definition-exists="false" ipc-concordant="B23K9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0213</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Narrow gap welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0216" definition-exists="false" ipc-concordant="B23K9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0216</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Seam profiling, e.g. weaving, multilayer</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/022" definition-exists="false" ipc-concordant="B23K9/022" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Welding by making use of electrode vibrations</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/025" definition-exists="false" ipc-concordant="B23K9/025" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for rectilinear seams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0253" definition-exists="false" ipc-concordant="B23K9/025" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for the longitudinal seam of tubes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0256" definition-exists="false" ipc-concordant="B23K9/025" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0256</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for welding ribs on plates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/028" definition-exists="false" ipc-concordant="B23K9/028" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for curved planar seams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0282" definition-exists="false" ipc-concordant="B23K9/028" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for welding tube sections</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/0284" definition-exists="false" ipc-concordant="B23K9/028" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0284</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an electrode working inside the tube</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/0286" definition-exists="false" ipc-concordant="B23K9/028" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with an electrode moving around the fixed tube during the welding operation</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0288" definition-exists="false" ipc-concordant="B23K9/028" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0288</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for welding of tubes to tube plates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/032" definition-exists="false" ipc-concordant="B23K9/032" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/032</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for three-dimensional seams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0325" definition-exists="false" ipc-concordant="B23K9/032" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0325</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>helicoidal seams</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/035" definition-exists="false" ipc-concordant="B23K9/035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/035</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with backing means disposed under the seam</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0352" definition-exists="false" ipc-concordant="B23K9/035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0352</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the backing means being movable during the welding operation</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0354" definition-exists="false" ipc-concordant="B23K9/035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0354</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the backing means being expandable</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0356" definition-exists="false" ipc-concordant="B23K9/035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0356</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the backing means being a tape or strip</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0358" definition-exists="false" ipc-concordant="B23K9/035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0358</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the backing means being a ring or sleeve</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/038" definition-exists="false" ipc-concordant="B23K9/038" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/038</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using moulding means </text><reference><text>not restricted to arc welding <class-ref scheme="cpc">B23K37/06</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/04" definition-exists="false" ipc-concordant="B23K9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Welding for other purposes than joining, e.g. built-up welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/042" definition-exists="false" ipc-concordant="B23K9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Built-up welding on planar surfaces</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/044" definition-exists="false" ipc-concordant="B23K9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Built-up welding on three-dimensional surfaces</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/046" definition-exists="false" ipc-concordant="B23K9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>on surfaces of revolution</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/048" definition-exists="false" ipc-concordant="B23K9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>on cylindrical surfaces</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/06" definition-exists="false" ipc-concordant="B23K9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/067" definition-exists="false" ipc-concordant="B23K9/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Starting the arc</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0671" definition-exists="false" ipc-concordant="B23K9/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0671</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of brief contacts between the electrodes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0672" definition-exists="false" ipc-concordant="B23K9/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0672</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>without direct contact between electrodes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/0673" definition-exists="false" ipc-concordant="B23K9/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0673</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ionisation of the arc gap by means of a tension with a step front (pulses or high frequency tensions)</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/0675" definition-exists="false" ipc-concordant="B23K9/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0675</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ionization of the arc gap by means of radiation or particle bombardtent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/0676" definition-exists="false" ipc-concordant="B23K9/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0676</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ionization of the arc gap by means of heating</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/0677" definition-exists="false" ipc-concordant="B23K9/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0677</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ionization of the arc gap by means of a contact piece disposed between the electrodes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/0678" definition-exists="false" ipc-concordant="B23K9/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0678</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ionization of the arc gap by means of an auxiliary arc</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/073" definition-exists="false" ipc-concordant="B23K9/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/073</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stabilising the arc</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0731" definition-exists="false" ipc-concordant="B23K9/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0731</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stabilising of the arc tension</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0732" definition-exists="false" ipc-concordant="B23K9/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0732</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stabilising of the arc current</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0734" definition-exists="false" ipc-concordant="B23K9/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0734</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stabilising of the arc power</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0735" definition-exists="false" ipc-concordant="B23K9/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0735</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stabilising of the arc length</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0737" definition-exists="false" ipc-concordant="B23K9/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0737</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stabilising of the arc position</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/0738" definition-exists="false" ipc-concordant="B23K9/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0738</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stabilising of the arc by automatic re-ignition means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/08" definition-exists="false" ipc-concordant="B23K9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements or circuits for magnetic control of the arc </text><CPC-specific-text><reference><text>stabilising of the arc position by magnetic means <class-ref scheme="cpc">B23K9/0737</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/09" definition-exists="false" ipc-concordant="B23K9/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements or circuits for arc welding with pulsed current or voltage</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/091" definition-exists="false" ipc-concordant="B23K9/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/091</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the circuits</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/092" definition-exists="false" ipc-concordant="B23K9/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/092</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the shape of the pulses produced</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/093" definition-exists="false" ipc-concordant="B23K9/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the frequency of the pulses produced being modulatable</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/095" definition-exists="false" ipc-concordant="B23K9/095" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/095</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monitoring or automatic control of welding parameters</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0953" definition-exists="false" ipc-concordant="B23K9/095" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0953</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using computing means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/0956" definition-exists="false" ipc-concordant="B23K9/095" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/0956</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using sensing means, e.g. optical</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/10" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other electric circuits therefor</text></title-part><title-part><text>Protective circuits</text></title-part><title-part><text>Remote controls</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/1006" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Power supply</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/1012" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1012</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by parts of the process</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/1018" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Improvements of the cos (phi) of arc welding installations</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/1025" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for suppressing or reducing DC components in AC arc welding installations</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/1031" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1031</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Reduction of the arc voltage beneath the arc striking value, e.g. to zero voltage, during non-welding periods</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/1037" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1037</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means preventing crater forming at the extremity of the seam</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/1043" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the electric circuit </text><reference><text><class-ref scheme="cpc">B23K9/1012</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/105" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using discharge tubes or mechanical contactors </text><reference><text><class-ref scheme="cpc">B23K9/1068</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/1056" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1056</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using digital means </text><reference><text><class-ref scheme="cpc">B23K9/1068</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K9/1062" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with computing means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/1068" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electric circuits for the supply of power to two or more arcs from a single source</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/1075" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Parallel power supply, i.e. multiple power supplies or multiple inverters supplying a single arc or welding current</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/1081" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arc welding by means of accumulated energy</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/1087" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1087</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arc welding using remote control</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/1093" definition-exists="false" ipc-concordant="B23K9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Consumable electrode or filler wire preheat circuits</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/12" definition-exists="false" ipc-concordant="B23K9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Automatic feeding or moving of electrodes or work for spot or seam welding or cutting</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/121" definition-exists="false" ipc-concordant="B23K9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for the automatic supply of at least two electrodes one after the other</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/122" definition-exists="false" ipc-concordant="B23K9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for guiding electrodes, e.g. guide tubes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/123" definition-exists="false" ipc-concordant="B23K9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Serving also as contacting devices supplying welding current to an electrode</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/124" definition-exists="false" ipc-concordant="B23K9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Circuits or methods for feeding welding wire</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/125" definition-exists="false" ipc-concordant="B23K9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Feeding of electrodes </text><reference><text>for stabilising arc <class-ref scheme="cpc">B23K9/073</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/126" definition-exists="false" ipc-concordant="B23K9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlling the spatial relationship between the work and the gas torch </text><reference><text>between wire tip and piece <class-ref scheme="cpc">B23K9/073</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/127" definition-exists="false" ipc-concordant="B23K9/127" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for tracking lines during arc welding or cutting </text><reference><text>copying in general <class-ref scheme="cpc">B23Q35/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/1272" definition-exists="false" ipc-concordant="B23K9/127" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1272</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Geometry oriented, e.g. beam optical trading</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/1274" definition-exists="false" ipc-concordant="B23K9/127" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1274</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Using non-contact, optical means, e.g. laser means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/1276" definition-exists="false" ipc-concordant="B23K9/127" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1276</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Using non-contact, electric or magnetic means, e.g. inductive means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/1278" definition-exists="false" ipc-concordant="B23K9/127" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1278</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Using mechanical means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/133" definition-exists="false" ipc-concordant="B23K9/133" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/133</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Means for feeding electrodes, e.g. drums, rolls, motors</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/1333" definition-exists="false" ipc-concordant="B23K9/133" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1333</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Dereeling means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/1336" definition-exists="false" ipc-concordant="B23K9/133" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1336</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Driving means</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/14" definition-exists="false" ipc-concordant="B23K9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>making use of insulated electrodes</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/142" definition-exists="false" ipc-concordant="B23K9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Drag welding, the arc length being determined by an insulated layer between the welding electrode and the welding spot or seam</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/145" definition-exists="false" ipc-concordant="B23K9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the insulated welding electrode being laid along the seam</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/147" definition-exists="false" ipc-concordant="B23K9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the insulated welding electrode resting with one extremity on the workpiece</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/16" definition-exists="false" ipc-concordant="B23K9/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>making use of shielding gas </text><CPC-specific-text><reference><text>selection of media <class-ref scheme="cpc">B23K35/38</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/162" definition-exists="false" ipc-concordant="B23K9/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/162</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of a stationary fluid</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/164" definition-exists="false" ipc-concordant="B23K9/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/164</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of a moving fluid</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/167" definition-exists="false" ipc-concordant="B23K9/167" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/167</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>and of a non-consumable electrode</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/1675" definition-exists="false" ipc-concordant="B23K9/167" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1675</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of several electrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/173" definition-exists="false" ipc-concordant="B23K9/173" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/173</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>and of a consumable electrode</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/1735" definition-exists="false" ipc-concordant="B23K9/173" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/1735</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of several electrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/18" definition-exists="false" ipc-concordant="B23K9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Submerged-arc welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/182" definition-exists="false" ipc-concordant="B23K9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/182</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of a non-consumable electrode</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/184" definition-exists="false" ipc-concordant="B23K9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/184</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of several electrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/186" definition-exists="false" ipc-concordant="B23K9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of a consumable electrodes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/188" definition-exists="false" ipc-concordant="B23K9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/188</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of several electrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/20" definition-exists="false" ipc-concordant="B23K9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Stud welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/201" definition-exists="false" ipc-concordant="B23K9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/201</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the extremity of a small piece on a great or large basis</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/202" definition-exists="false" ipc-concordant="B23K9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/202</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of portable equipment, e.g. stud welding gun</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/203" definition-exists="false" ipc-concordant="B23K9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/203</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of cooling fins</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/205" definition-exists="false" ipc-concordant="B23K9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for determining, controlling or regulating the arc interval</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/206" definition-exists="false" ipc-concordant="B23K9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with automatic stud supply</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/207" definition-exists="false" ipc-concordant="B23K9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/207</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Features related to studs </text><reference><text>welding studs <u>per se</u> <class-ref scheme="cpc">B23K35/0288</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/208" definition-exists="false" ipc-concordant="B23K9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/208</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ferrules, e.g. for confining molten material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/22" definition-exists="false" ipc-concordant="B23K9/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Percussion welding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/23" definition-exists="false" ipc-concordant="B23K9/23" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/23</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>taking account of the properties of the materials to be welded</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/232" definition-exists="false" ipc-concordant="B23K9/23" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/232</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of different metals</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/235" definition-exists="false" ipc-concordant="B23K9/235" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/235</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preliminary treatment</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/24" definition-exists="false" ipc-concordant="B23K9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Features related to electrodes </text><reference><text>form or composition of electrodes <class-ref scheme="cpc">B23K35/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/26" definition-exists="false" ipc-concordant="B23K9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Accessories for electrodes, e.g. ignition tips</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/28" definition-exists="false" ipc-concordant="B23K9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Supporting devices for electrodes </text><reference><text>not restricted to arc welding or cutting <class-ref scheme="cpc">B23K37/02</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/282" definition-exists="false" ipc-concordant="B23K9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrode holders not supplying shielding means to the electrode</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/285" definition-exists="false" ipc-concordant="B23K9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooled electrode holders</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/287" definition-exists="false" ipc-concordant="B23K9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/287</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Supporting devices for electrode holders </text><reference><text>not restricted to arc welding <class-ref scheme="cpc">B23K37/02</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/29" definition-exists="false" ipc-concordant="B23K9/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/29</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Supporting devices adapted for making use of shielding means</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/291" definition-exists="false" ipc-concordant="B23K9/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/291</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the shielding means being a gas</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K9/293" definition-exists="false" ipc-concordant="B23K9/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/293</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using consumable electrode-rod</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K9/295" definition-exists="false" ipc-concordant="B23K9/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/295</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using consumable electrode-wire</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K9/296" definition-exists="false" ipc-concordant="B23K9/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/296</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using non-consumable electrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K9/298" definition-exists="false" ipc-concordant="B23K9/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/298</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the shielding means being a powder</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/30" definition-exists="false" ipc-concordant="B23K9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Vibrating holders for electrodes </text><reference><text><class-ref scheme="cpc">B23K9/022</class-ref> takes precedence</text></reference></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K9/32" definition-exists="false" ipc-concordant="B23K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Accessories </text><reference><text>earthing connections <class-ref scheme="cpc">H01R</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/321" definition-exists="false" ipc-concordant="B23K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/321</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Protecting means </text><reference><text>protecting means in general <class-ref scheme="cpc">F16P1/06</class-ref></text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/322" definition-exists="false" ipc-concordant="B23K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/322</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Head protecting means </text><reference><text>masks, shields or hoods for weldersp <class-ref scheme="cpc">A61F9/06</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/323" definition-exists="false" ipc-concordant="B23K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combined coupling means, e.g. gas, electricity, water or the like </text><reference><text>electrical only <class-ref scheme="cpc">H01R</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/324" definition-exists="false" ipc-concordant="B23K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/324</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for supplying or evacuating a shielding or a welding powder, e.g. a magnetic powder</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/325" definition-exists="false" ipc-concordant="B23K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/325</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for supplying or evacuating shielding gas</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K9/326" definition-exists="false" ipc-concordant="B23K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/326</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Purge gas rings, i.e. devices for supplying or evacuating shielding gas inside of hollow or tubular articles, e.g. pipes, vessels</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/327" definition-exists="false" ipc-concordant="B23K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/327</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for transporting supplies </text><reference><text>carriages in general <class-ref scheme="cpc">B23K37/02</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K9/328" definition-exists="false" ipc-concordant="B23K9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K9/328</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cleaning of weld torches, i.e. removing weld-spatter; Preventing weld-spatter, e.g. applying anti-adhesives</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K10/00" definition-exists="true" ipc-concordant="B23K10/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K10/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Welding or cutting by means of a plasma</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K10/003" definition-exists="false" ipc-concordant="B23K10/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K10/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Scarfing, desurfacing or deburring </text><reference><text>by applying flames <class-ref scheme="cpc">B23K7/06</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K10/006" definition-exists="false" ipc-concordant="B23K10/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K10/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control circuits therefor </text><reference><text>circuits for plasma torches <class-ref scheme="cpc">H05H1/36</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K10/02" definition-exists="false" ipc-concordant="B23K10/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K10/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Plasma welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K10/022" definition-exists="false" ipc-concordant="B23K10/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K10/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Spot welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K10/025" definition-exists="false" ipc-concordant="B23K10/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K10/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by making use of electrode vibrations</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K10/027" definition-exists="false" ipc-concordant="B23K10/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K10/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding for purposes other than joining, e.g. build-up welding</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K11/00" definition-exists="true" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Resistance welding</text></title-part><title-part><text>Severing by resistance heating</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/0006" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the welding zone being shielded against the influence of the surrounding atmosphere </text><reference><text>selection of media <class-ref scheme="cpc">B23K35/38</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/0013" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0013</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>welding for reasons other than joining, e.g. build up welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/002" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for particular articles or work</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/0026" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding of thin articles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/0033" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding locally a thin plate to a large piece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/004" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding of a small piece to a great or broad piece</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/0046" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the extremity of a small piece being welded to a base, e.g. cooling studs or fins to tubes or plates</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/0053" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stud welding, i.e. resistive </text><reference><text>with an arc <class-ref scheme="cpc">B23K9/20</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/006" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding a tip to a base, e.g. pen point nibs</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/0066" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Riveting</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/0073" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Butt welding of long articles advanced axially</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/008" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Manufacturing of metallic grids or mats by spot welding</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/0086" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Grids or mats used in concrete structures </text><reference><text><class-ref scheme="cpc">B23K11/11</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/0093" definition-exists="false" ipc-concordant="B23K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding of honeycomb sandwich structures </text><reference><text>brazing of honeycomb sandwich structure <class-ref scheme="cpc">B23K1/0014</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/02" definition-exists="false" ipc-concordant="B23K11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pressure butt welding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/04" definition-exists="false" ipc-concordant="B23K11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Flash butt welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/043" definition-exists="false" ipc-concordant="B23K11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the electric circuits used therewith</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/046" definition-exists="false" ipc-concordant="B23K11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Apparatus therefor</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/06" definition-exists="false" ipc-concordant="B23K11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using roller electrodes</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/061" definition-exists="false" ipc-concordant="B23K11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for welding rectilinear seams</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/062" definition-exists="false" ipc-concordant="B23K11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for welding longitudinal seams of tubes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/063" definition-exists="false" ipc-concordant="B23K11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lap welding</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/065" definition-exists="false" ipc-concordant="B23K11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for welding curved planar seams</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/066" definition-exists="false" ipc-concordant="B23K11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of tube sections</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/067" definition-exists="false" ipc-concordant="B23K11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for welding three-dimensional seams</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/068" definition-exists="false" ipc-concordant="B23K11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of helicoidal seams</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/08" definition-exists="false" ipc-concordant="B23K11/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K11/08</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Seam welding not restricted to one of the preceding subgroups</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/082" definition-exists="false" ipc-concordant="B23K11/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of three-dimensional seams</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/084" definition-exists="false" ipc-concordant="B23K11/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of helicoïdal seams</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/087" definition-exists="false" ipc-concordant="B23K11/087" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for rectilinear seams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/0873" definition-exists="false" ipc-concordant="B23K11/087" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0873</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the longitudinal seam of tubes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/0876" definition-exists="false" ipc-concordant="B23K11/087" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0876</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lap welding</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/093" definition-exists="false" ipc-concordant="B23K11/093" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/093</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for curved planar seams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/0935" definition-exists="false" ipc-concordant="B23K11/093" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/0935</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of tube sections</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/10" definition-exists="false" ipc-concordant="B23K11/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spot welding</text></title-part><title-part><text>Stitch welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/105" definition-exists="false" ipc-concordant="B23K11/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Stitch welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/11" definition-exists="false" ipc-concordant="B23K11/11" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/11</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spot welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/115" definition-exists="false" ipc-concordant="B23K11/11" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/115</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by means of two electrodes placed opposite one another on both sides of the welded parts</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/12" definition-exists="false" ipc-concordant="B23K11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>making use of vibrations</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/14" definition-exists="false" ipc-concordant="B23K11/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Projection welding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/16" definition-exists="false" ipc-concordant="B23K11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>taking account of the properties of the material to be welded</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/163" definition-exists="false" ipc-concordant="B23K11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding of coated materials</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/166" definition-exists="false" ipc-concordant="B23K11/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of galvanized or tinned materials</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/18" definition-exists="false" ipc-concordant="B23K11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of non-ferrous metals </text><reference><text><class-ref scheme="cpc">B23K11/20</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/185" definition-exists="false" ipc-concordant="B23K11/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of aluminium or aluminium alloys</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/20" definition-exists="false" ipc-concordant="B23K11/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of different metals</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/22" definition-exists="false" ipc-concordant="B23K11/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Severing by resistance heating</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/24" definition-exists="false" ipc-concordant="B23K11/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electric supply or control circuits therefor</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/241" definition-exists="false" ipc-concordant="B23K11/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/241</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electric supplies </text><reference><text><class-ref scheme="cpc">B23K11/248</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/243" definition-exists="false" ipc-concordant="B23K11/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/243</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple welding installations fed by one source</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/245" definition-exists="false" ipc-concordant="B23K11/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/245</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a stepping counter in synchronism with the welding pulses </text><reference><text>electromagnetic counters <class-ref scheme="cpc">G06M</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/246" definition-exists="false" ipc-concordant="B23K11/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for flash welding</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/248" definition-exists="false" ipc-concordant="B23K11/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/248</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electric supplies using discharge tubes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/25" definition-exists="false" ipc-concordant="B23K11/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/25</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Monitoring devices</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/251" definition-exists="false" ipc-concordant="B23K11/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/251</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using analog means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/252" definition-exists="false" ipc-concordant="B23K11/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/252</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using digital means</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/253" definition-exists="false" ipc-concordant="B23K11/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the measured parameter being a displacement or a position</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/255" definition-exists="false" ipc-concordant="B23K11/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/255</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the measured parameter being a force </text><reference><text><class-ref scheme="cpc">B23K11/253</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/256" definition-exists="false" ipc-concordant="B23K11/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/256</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the measured parameter being the inter-electrode electrical resistance</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/257" definition-exists="false" ipc-concordant="B23K11/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/257</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the measured parameter being an electrical current</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/258" definition-exists="false" ipc-concordant="B23K11/25" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/258</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the measured parameter being a voltage</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/26" definition-exists="false" ipc-concordant="B23K11/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Storage discharge welding</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/28" definition-exists="false" ipc-concordant="B23K11/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Portable welding equipment</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/30" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Features relating to electrodes </text><reference><text>form or composition of electrodes <class-ref scheme="cpc">B23K35/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/3009" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/3009</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pressure electrodes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/3018" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/3018</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooled pressure electrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/3027" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/3027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slide or drag electrodes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/3036" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/3036</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Roller electrodes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/3045" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/3045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooled roller electrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/3054" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/3054</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooled electrodes </text><reference><text><class-ref scheme="cpc">B23K11/3018</class-ref>, <class-ref scheme="cpc">B23K11/3045</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/3063" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/3063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrode maintenance, e.g. cleaning, grinding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/3072" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/3072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for exchanging or removing electrodes or electrode tips</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/3081" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/3081</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electrodes with a seam contacting part shaped so as to correspond to the shape of the bond area, e.g. for making an annular bond without relative movement in the longitudinal direction of the seam between the electrode holder and the work</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/309" definition-exists="false" ipc-concordant="B23K11/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/309</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Wire electrodes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/31" definition-exists="false" ipc-concordant="B23K11/31" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/31</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electrode holders </text><CPC-specific-text><text>and actuating devices therefor</text></CPC-specific-text><reference><text>not restricted to resistance welding or severing by resistance heating <class-ref scheme="cpc">B23K37/02</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/311" definition-exists="false" ipc-concordant="B23K11/31" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/311</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the actuating device comprising an electric motor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/312" definition-exists="false" ipc-concordant="B23K11/31" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/312</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for several electrodes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/314" definition-exists="false" ipc-concordant="B23K11/31" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/314</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Spot welding guns, e.g. mounted on robots</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K11/315" definition-exists="false" ipc-concordant="B23K11/31" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/315</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with one electrode moving on a linear path</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/317" definition-exists="false" ipc-concordant="B23K11/31" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/317</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Equalizing; Balancing devices for electrode holders</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/318" definition-exists="false" ipc-concordant="B23K11/31" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/318</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Supporting devices for electrode holders</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/34" definition-exists="false" ipc-concordant="B23K11/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preliminary treatment</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K11/36" definition-exists="false" ipc-concordant="B23K11/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Auxiliary equipment </text><reference><text><class-ref scheme="cpc">B23K11/31</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K11/362" definition-exists="false" ipc-concordant="B23K11/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/362</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Contact means for supplying welding current to the electrodes</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/364" definition-exists="false" ipc-concordant="B23K11/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/364</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Clamping contacts</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/366" definition-exists="false" ipc-concordant="B23K11/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/366</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sliding contacts</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K11/368" definition-exists="false" ipc-concordant="B23K11/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K11/368</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Liquid contacts, e.g. mercury contacts</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K13/00" definition-exists="true" ipc-concordant="B23K13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Welding by high-frequency current heating</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K13/01" definition-exists="false" ipc-concordant="B23K13/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/01</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by induction heating</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K13/015" definition-exists="false" ipc-concordant="B23K13/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/015</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Butt welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K13/02" definition-exists="false" ipc-concordant="B23K13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seam welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K13/025" definition-exists="false" ipc-concordant="B23K13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for tubes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K13/04" definition-exists="false" ipc-concordant="B23K13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by conduction heating </text><CPC-specific-text><reference><text><class-ref scheme="cpc">B23K13/02</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K13/043" definition-exists="false" ipc-concordant="B23K13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Seam welding</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K13/046" definition-exists="false" ipc-concordant="B23K13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for tubes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K13/06" definition-exists="false" ipc-concordant="B23K13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the shielding of the welding zone against influence of the surrounding atmosphere </text><reference><text>selection of media <class-ref scheme="cpc">B23K35/38</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K13/08" definition-exists="false" ipc-concordant="B23K13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K13/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electric supply or control circuits therefor</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="B23K15/00" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other welding or cutting</text></title-part><title-part><text>Working by laser beam</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K15/00" definition-exists="true" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Electron-beam welding or cutting </text><reference><text>electron- or ion- beam tubes <class-ref scheme="cpc">H01J37/00</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/0006" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for particular articles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/0013" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0013</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Positioning or observing workpieces, e.g. with respect to the impact; Aligning, aiming or focusing electronbeams</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/002" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices involving relative movement between electronbeam and workpiece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/0026" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Auxiliary equipment</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/0033" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preliminary treatment</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/004" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tandem beams or torches, i.e. working simultaneously with several beams or torches</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/0046" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K15/0053" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Seam welding</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K15/006" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of rectilinear seams</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K15/0066" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with backing means disposed under the seams</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K15/0073" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with interposition of particular material to facilitate connecting the parts, e.g. using a filler</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K15/008" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Spot welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K15/0086" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>welding for purposes other than joining, e.g. built-up welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K15/0093" definition-exists="false" ipc-concordant="B23K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/0093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the properties of the materials to be welded</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/02" definition-exists="false" ipc-concordant="B23K15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control circuits therefor</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/04" definition-exists="false" ipc-concordant="B23K15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for welding annular seams</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/06" definition-exists="false" ipc-concordant="B23K15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>within a vacuum chamber </text><reference><text><class-ref scheme="cpc">B23K15/04</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/08" definition-exists="false" ipc-concordant="B23K15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Removing material, e.g. by cutting, by hole drilling</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K15/085" definition-exists="false" ipc-concordant="B23K15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Boring</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K15/10" definition-exists="false" ipc-concordant="B23K15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K15/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-vacuum electron beam-welding or cutting</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K17/00" definition-exists="true" ipc-concordant="B23K17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K17/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Use of the energy of nuclear particles in welding or related techniques</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K20/00" definition-exists="true" ipc-concordant="B23K20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/001" definition-exists="false" ipc-concordant="B23K20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by extrusion or drawing</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/002" definition-exists="false" ipc-concordant="B23K20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for particular articles or work </text><reference><text><class-ref scheme="cpc">B23K20/129</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/004" definition-exists="false" ipc-concordant="B23K20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Wire welding</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/005" definition-exists="false" ipc-concordant="B23K20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Capillary welding</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K20/007" definition-exists="false" ipc-concordant="B23K20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ball bonding</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/008" definition-exists="false" ipc-concordant="B23K20/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>pressure combined with radiant energy</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/02" definition-exists="false" ipc-concordant="B23K20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K20/02</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>by means of a press </text><CPC-specific-text><text>; Diffusion bonding </text><reference><text><class-ref scheme="cpc">B23K20/001</class-ref>, <class-ref scheme="cpc">B23K20/04</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/021" definition-exists="false" ipc-concordant="B23K20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Isostatic pressure welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/023" definition-exists="false" ipc-concordant="B23K20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Thermo-compression bonding</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/025" definition-exists="false" ipc-concordant="B23K20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bonding tips therefor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/026" definition-exists="false" ipc-concordant="B23K20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with diffusion of soldering material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/028" definition-exists="false" ipc-concordant="B23K20/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Butt welding</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/04" definition-exists="false" ipc-concordant="B23K20/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of a rolling mill</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/06" definition-exists="false" ipc-concordant="B23K20/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of high energy impulses, e.g. magnetic energy</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/08" definition-exists="false" ipc-concordant="B23K20/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Explosive welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/085" definition-exists="false" ipc-concordant="B23K20/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for tubes, e.g. plugging</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/10" definition-exists="false" ipc-concordant="B23K20/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>making use of vibrations, e.g. ultrasonic welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/103" definition-exists="false" ipc-concordant="B23K20/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a roller</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/106" definition-exists="false" ipc-concordant="B23K20/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Features related to sonotrodes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/12" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the heat being generated by friction</text></title-part><title-part><text>Friction welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/1205" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/1205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using translation movement</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/121" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control circuits therefor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/1215" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/1215</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for other purposes than joining, e.g. built-up welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/122" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a non-consumable tool, e.g. friction stir welding</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/1225" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>B23K20/1225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Particular aspects of welding with a non-consumable tool</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/123" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>B23K20/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlling or monitoring the welding process</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K20/1235" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/1235</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with temperature control during joining</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K20/124" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>at the beginning or at the end of a weld</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/1245" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>B23K20/1245</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>characterised by the apparatus</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K20/125" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rotary tool drive mechanism</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K20/1255" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/1255</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tools therefor, e.g. characterised by the shape of the probe</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K20/126" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Workpiece support, i.e. backing or clamping</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/1265" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-05-01" status="published"><classification-symbol>B23K20/1265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-butt welded joints, e.g. overlap-joints, T-joints or spot welds</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/127" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>friction stir welding involving a mechanical connection </text><reference><text>forged connections <class-ref scheme="cpc">B21K25/005</class-ref>; riveted connections <class-ref scheme="cpc">B21J15/027</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/1275" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/1275</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving metallurgical change</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/128" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making use of additional material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/1285" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/1285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Portable friction welding machines</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/129" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/129</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for particular articles or workpieces</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/1295" definition-exists="false" ipc-concordant="B23K20/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/1295</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding studs</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/14" definition-exists="false" ipc-concordant="B23K20/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preventing or minimising gas access, or using protective gases or vacuum during welding </text><reference><text>formed by material interposed between workpieces <class-ref scheme="cpc">B23K20/18</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/16" definition-exists="false" ipc-concordant="B23K20/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with interposition of special material to facilitate connection of the parts, e.g. material for absorbing or producing gas</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/165" definition-exists="false" ipc-concordant="B23K20/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving an exothermic reaction of the interposed material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/18" definition-exists="false" ipc-concordant="B23K20/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Zonal welding by interposing weld-preventing substances between zones not to be welded</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/20" definition-exists="false" ipc-concordant="B23K20/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special methods allowing subsequent separation, e.g. of metals of high quality from scrap material</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/22" definition-exists="false" ipc-concordant="B23K20/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>taking account of the properties of the materials to be welded</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/227" definition-exists="false" ipc-concordant="B23K20/227" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/227</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with ferrous layer</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/2275" definition-exists="false" ipc-concordant="B23K20/227" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/2275</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the other layer being aluminium</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K20/233" definition-exists="false" ipc-concordant="B23K20/233" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/233</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>without ferrous layer</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/2333" definition-exists="false" ipc-concordant="B23K20/233" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/2333</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>one layer being aluminium, magnesium or beryllium</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K20/2336" definition-exists="false" ipc-concordant="B23K20/233" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/2336</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>both layers being aluminium</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/24" definition-exists="false" ipc-concordant="B23K20/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Preliminary treatment</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K20/26" definition-exists="false" ipc-concordant="B23K20/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K20/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Auxiliary equipment</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K23/00" definition-exists="true" ipc-concordant="B23K23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K23/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Alumino-thermic welding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K25/00" definition-exists="true" ipc-concordant="B23K25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K25/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Slag welding, i.e. using a heated layer or mass of powder, slag, or the like in contact with the material to be joined </text><reference><text><class-ref scheme="cpc">B23K23/00</class-ref> takes precedence; submerged-arc welding <class-ref scheme="cpc">B23K9/18</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K25/005" definition-exists="false" ipc-concordant="B23K25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K25/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding for purposes other than joining, e.g. built-up welding</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K26/00" definition-exists="true" ipc-concordant="B23K26/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/00</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Working by laser beam, e.g. welding, cutting or boring</text></title-part></class-title><notes-and-warnings><note type="note"><note-paragraph>This subclass <u>covers</u>: <subnote type="bullet"><note-paragraph>laser working for making a weakened layer, with or without removing material;</note-paragraph><note-paragraph>laser shock processing;</note-paragraph><note-paragraph>apparatus for laser surface treatment;</note-paragraph><note-paragraph>laser ablation.</note-paragraph></subnote></note-paragraph><note-paragraph>This subclass <u>does not cover</u>: <subnote type="bullet"><note-paragraph>laser assisted deposition which is covered by subclass <class-ref scheme="cpc">C23C</class-ref>;</note-paragraph><note-paragraph>laser sintering which is covered by group <class-ref scheme="cpc">B22F3/105</class-ref> for metallic powder, by group <class-ref scheme="cpc">B29C67/04</class-ref> for plastics, by group <class-ref scheme="cpc">C03B19/06</class-ref> for glass or by group <class-ref scheme="cpc">C04B35/64</class-ref> for ceramics;</note-paragraph><note-paragraph>laser assisted chemical etching which is covered by group <class-ref scheme="cpc">C23F1/00</class-ref>.</note-paragraph></subnote></note-paragraph></note></notes-and-warnings>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/0006" definition-exists="true" ipc-concordant="B23K26/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0006</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>taking account of the properties of the material involved </text><reference><text><class-ref scheme="cpc">B23K26/32</class-ref>, <class-ref scheme="cpc">B23K26/40</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/009" definition-exists="false" ipc-concordant="B23K26/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/009</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>using a non-absorbing, e.g. transparent, reflective or refractive, layer on the workpiece </text><reference><text>using a mask on the workpiece <class-ref scheme="cpc">B23K26/066</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/0093" definition-exists="false" ipc-concordant="B23K26/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0093</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>combined with mechanical machining or metal-working covered by other subclasses than <class-ref scheme="cpc">B23K</class-ref> </text><reference><text>combined welding or cutting procedures or apparatus <class-ref scheme="cpc">B23K28/02</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/0096" definition-exists="false" ipc-concordant="B23K26/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/0096</classification-symbol><class-title date-revised="2017-08-01"><title-part><CPC-specific-text><text>Portable laser equipment, e.g. hand-held laser apparatus </text><reference><text>surgical laser instruments <class-ref scheme="cpc">A61B18/20</class-ref>, Dental Lasers <class-ref scheme="cpc">A61C1/0046</class-ref>, Hand-held laser dental apparatus for curing resins <class-ref scheme="cpc">A61C19/004</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/02" definition-exists="true" ipc-concordant="B23K26/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Positioning or observing the workpiece, e.g. with respect to the point of impact</text></title-part><title-part><text>Aligning, aiming or focusing the laser beam</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/03" definition-exists="false" ipc-concordant="B23K26/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/03</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Observing, e.g. monitoring, the workpiece</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/032" definition-exists="false" ipc-concordant="B23K26/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/032</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using optical means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/034" definition-exists="false" ipc-concordant="B23K26/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/034</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Observing the temperature of the workpiece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/0342" definition-exists="false" ipc-concordant="B23K26/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0342</classification-symbol><class-title><title-part><CPC-specific-text><text>Observing magnetic fields related to the workpiece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/0344" definition-exists="false" ipc-concordant="B23K26/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0344</classification-symbol><class-title><title-part><CPC-specific-text><text>Observing the speed of the workpiece</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/035" definition-exists="false" ipc-concordant="B23K26/035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/035</classification-symbol><class-title><title-part><text>Aligning the laser beam </text><reference><text>automatically <class-ref scheme="cpc">B23K26/042</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/037" definition-exists="false" ipc-concordant="B23K26/035" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/037</classification-symbol><class-title><title-part><CPC-specific-text><text>by pressing on the workpiece, e.g. pressing roller foot</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/04" definition-exists="false" ipc-concordant="B23K26/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/042" definition-exists="false" ipc-concordant="B23K26/042" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/042</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Automatically aligning the laser beam</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/043" definition-exists="false" ipc-concordant="B23K26/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>along the beam path, i.e. alignment of laser beam axis relative to laser beam apparatus</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/044" definition-exists="false" ipc-concordant="B23K26/044" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/044</classification-symbol><class-title><title-part><text>Seam tracking</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/046" definition-exists="false" ipc-concordant="B23K26/046" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/046</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Automatically focusing the laser beam</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/048" definition-exists="false" ipc-concordant="B23K26/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by controlling the distance between laser head and workpiece</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/06" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/06</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Shaping the laser beam, e.g. by masks or multi-focusing</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/0604" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0604</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by a combination of beams</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0608" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0608</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>in the same heat affected zone [HAZ] </text><reference><text><class-ref scheme="cpc">B23K26/0613</class-ref>, <class-ref scheme="cpc">B23K26/0619</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0613" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0613</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>having a common axis </text><reference><text><class-ref scheme="cpc">B23K26/0619</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K26/0617" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0617</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and with spots spaced along the common axis</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0619" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0619</classification-symbol><class-title><title-part><CPC-specific-text><text>with spots located on opposed surfaces of the workpiece</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/062" definition-exists="false" ipc-concordant="B23K26/062" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/062</classification-symbol><class-title><title-part><text>by direct control of the laser beam</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0622" definition-exists="false" ipc-concordant="B23K26/0622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0622</classification-symbol><class-title><title-part><text>by shaping pulses</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K26/0624" definition-exists="false" ipc-concordant="B23K26/0622" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0624</classification-symbol><class-title><title-part><CPC-specific-text><text>using ultrashort pulses, i.e. pulses of 1ns or less</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0626" definition-exists="true" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0626</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Energy control of the laser beam </text><reference><text><class-ref scheme="cpc">B23K26/0622</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/064" definition-exists="false" ipc-concordant="B23K26/064" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/064</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>by means of optical elements, e.g. lenses, mirrors or prisms</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0643" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0643</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising mirrors</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0648" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0648</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising lenses</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0652" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0652</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising prisms</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/066" definition-exists="true" ipc-concordant="B23K26/066" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/066</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>by using masks</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K26/0661" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0661</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>disposed on the workpiece</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/0665" definition-exists="false" ipc-concordant="B23K26/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0665</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by beam condensation on the workpiece, e.g. for focusing</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/067" definition-exists="false" ipc-concordant="B23K26/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dividing the beam into multiple beams, e.g. multifocusing</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0673" definition-exists="false" ipc-concordant="B23K26/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0673</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>into independently operating sub-beams, e.g. beam multiplexing to provide laser beams for several stations</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0676" definition-exists="false" ipc-concordant="B23K26/067" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0676</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>into dependently operating sub-beams, e.g. an array of spots with fixed spatial relationship or for performing simultaneously identical operations</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/073" definition-exists="false" ipc-concordant="B23K26/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/073</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaping the laser spot</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0732" definition-exists="false" ipc-concordant="B23K26/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0732</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>into a rectangular shape</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0734" definition-exists="false" ipc-concordant="B23K26/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0734</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>into an annular shape</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0736" definition-exists="false" ipc-concordant="B23K26/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0736</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>into an oval shape, e.g. elliptic shape</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0738" definition-exists="false" ipc-concordant="B23K26/073" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0738</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>into a linear shape</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/08" definition-exists="true" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices involving relative movement between laser beam and workpiece</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/082" definition-exists="false" ipc-concordant="B23K26/082" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/082</classification-symbol><class-title><title-part><text>Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/0821" definition-exists="true" ipc-concordant="B23K26/082" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/0821</classification-symbol><class-title><title-part><CPC-specific-text><text>using multifaceted mirrors, e.g. polygonal mirror</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/0823" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0823</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices involving rotation of the workpiece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/083" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices involving movement of the workpiece in at least one axial direction</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/0838" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0838</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using an endless conveyor belt</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0846" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0846</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for moving elongated workpieces longitudinally, e.g. wire or strip material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/0853" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0853</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0861" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0861</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in at least in three axial directions</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/0869" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0869</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices involving movement of the laser head in at least one axial direction</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/0876" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0876</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in at least two axial directions</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/0884" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0884</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in at least in three axial directions, e.g. manipulators, robots</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/0892" definition-exists="false" ipc-concordant="B23K26/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/0892</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlling the laser beam travel length</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/10" definition-exists="false" ipc-concordant="B23K26/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/10</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>using a fixed support </text><CPC-specific-text><text>, i.e. involving moving the laser beam</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/103" definition-exists="false" ipc-concordant="B23K26/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the laser beam rotating around the fixed workpiece </text><reference><text><class-ref scheme="cpc">B23K26/28</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/106" definition-exists="false" ipc-concordant="B23K26/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>inside the workpiece</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/12" definition-exists="true" ipc-concordant="B23K26/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in a special atmosphere, e.g. in an enclosure</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/122" definition-exists="false" ipc-concordant="B23K26/122" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/122</classification-symbol><class-title><title-part><text>in a liquid, e.g. underwater</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/1224" definition-exists="false" ipc-concordant="B23K26/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/1224</classification-symbol><class-title><title-part><CPC-specific-text><text>in vacuum</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/123" definition-exists="false" ipc-concordant="B23K26/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in an atmosphere of particular gases</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/125" definition-exists="false" ipc-concordant="B23K26/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of mixed gases</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/126" definition-exists="true" ipc-concordant="B23K26/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/126</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>in an atmosphere of gases chemically reacting with the workpiece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/127" definition-exists="false" ipc-concordant="B23K26/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in an enclosure</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/128" definition-exists="false" ipc-concordant="B23K26/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Laser beam path enclosures</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/14" definition-exists="true" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/14</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam</text></title-part><title-part><text>Nozzles therefor </text><reference><text><class-ref scheme="cpc">B23K26/12</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/142" definition-exists="false" ipc-concordant="B23K26/142" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/142</classification-symbol><class-title><title-part><text>for the removal of by-products</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/1423" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/1423</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the flow carrying an electric current</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/1435" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/1435</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving specially adapted flow control means</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/1436" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/1436</classification-symbol><class-title><title-part><CPC-specific-text><text>for pressure control</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/1437" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/1437</classification-symbol><class-title><title-part><CPC-specific-text><text>for flow rate control</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/1438" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/1438</classification-symbol><class-title><title-part><CPC-specific-text><text>for directional control</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/144" definition-exists="false" ipc-concordant="B23K26/144" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/144</classification-symbol><class-title><title-part><text>the fluid stream containing particles, e.g. powder</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/146" definition-exists="false" ipc-concordant="B23K26/146" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/146</classification-symbol><class-title><title-part><text>the fluid stream containing a liquid</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/1462" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/1462</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Nozzles; Features related to nozzles</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/1464" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/1464</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Supply to, or discharge from, nozzles of media, e.g. gas, powder, wire</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/147" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/147</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Features outside the nozzle for feeding the fluid stream towards the workpiece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/1476" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/1476</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Features inside the nozzle for feeding the fluid stream through the nozzle</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/1482" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/1482</classification-symbol><class-title date-revised="2015-10-01"><title-part><CPC-specific-text><text>Detachable nozzles, e.g. exchangeable or provided with breakaway lines</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/1488" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/1488</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for protecting nozzles, e.g. the tip surface </text><reference><text>by breakaway lines <class-ref scheme="cpc">B23K26/1482</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/1494" definition-exists="false" ipc-concordant="B23K26/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/1494</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Maintenance of nozzles</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/16" definition-exists="true" ipc-concordant="B23K26/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/16</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece </text><reference><text>by a fluid stream <class-ref scheme="cpc">B23K26/142</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/18" definition-exists="true" ipc-concordant="B23K26/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/18</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>using absorbing layers on the workpiece, e.g. for marking or protecting purposes</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/20" definition-exists="true" ipc-concordant="B23K26/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/20</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Bonding </text><reference><text>soldering by means of radiant energy <class-ref scheme="cpc">B23K1/005</class-ref>; joining of preformed plastics parts by heating using laser beam <class-ref scheme="cpc">B29C65/16</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/206" definition-exists="false" ipc-concordant="B23K26/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Laser sealing</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/21" definition-exists="false" ipc-concordant="B23K26/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/21</classification-symbol><class-title><title-part><text>by welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/211" definition-exists="true" ipc-concordant="B23K26/211" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/211</classification-symbol><class-title><title-part><text>with interposition of special material to facilitate connection of the parts</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/22" definition-exists="false" ipc-concordant="B23K26/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Spot welding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/24" definition-exists="false" ipc-concordant="B23K26/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seam welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/242" definition-exists="false" ipc-concordant="B23K26/242" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/242</classification-symbol><class-title><title-part><text>Fillet welding, i.e. involving a weld of substantially triangular cross section joining two parts</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/244" definition-exists="false" ipc-concordant="B23K26/244" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/244</classification-symbol><class-title><title-part><text>Overlap seam welding</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/26" definition-exists="false" ipc-concordant="B23K26/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of rectilinear seams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K26/262" definition-exists="false" ipc-concordant="B23K26/262" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/262</classification-symbol><class-title><title-part><text>of longitudinal seams of tubes</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/28" definition-exists="false" ipc-concordant="B23K26/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of curved planar seams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K26/282" definition-exists="false" ipc-concordant="B23K26/282" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/282</classification-symbol><class-title><title-part><text>of tube sections</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/30" definition-exists="false" ipc-concordant="B23K26/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of three-dimensional seams</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K26/302" definition-exists="false" ipc-concordant="B23K26/302" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/302</classification-symbol><class-title><title-part><text>of helicoidal seams</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/32" definition-exists="true" ipc-concordant="B23K26/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>taking account of the properties of the material involved</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/322" definition-exists="true" ipc-concordant="B23K26/322" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/322</classification-symbol><class-title><title-part><text>involving coated metal parts </text><reference><text>using absorbing layers on the workpiece <class-ref scheme="cpc">B23K26/18</class-ref></text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/323" definition-exists="false" ipc-concordant="B23K26/323" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/323</classification-symbol><class-title><title-part><text>involving parts made of dissimilar metallic material</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/324" definition-exists="true" ipc-concordant="B23K26/324" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/324</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>involving non-metallic parts</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/34" definition-exists="true" ipc-concordant="B23K26/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/34</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Laser welding for purposes other than joining</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/342" definition-exists="false" ipc-concordant="B23K26/342" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/342</classification-symbol><class-title><title-part><text>Build-up welding</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/346" definition-exists="false" ipc-concordant="B23K26/346" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/346</classification-symbol><class-title><title-part><text>in combination with welding or cutting covered by groups <class-ref scheme="cpc">B23K5/00</class-ref> - <class-ref scheme="cpc">B23K25/00</class-ref>, e.g. in combination with resistance welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/348" definition-exists="false" ipc-concordant="B23K26/348" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/348</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>in combination with arc heating, e.g. TIG [tungsten inert gas], MIG [metal inert gas] or plasma welding </text><reference><text>laser beam for starting a welding or cutting arc <class-ref scheme="cpc">B23K9/067</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/351" definition-exists="false" ipc-concordant="B23K26/351" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/351</classification-symbol><class-title><title-part><text>for trimming or tuning of electrical components</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/352" definition-exists="true" ipc-concordant="B23K26/352" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/352</classification-symbol><class-title><title-part><text>for surface treatment</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/354" definition-exists="true" ipc-concordant="B23K26/354" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/354</classification-symbol><class-title><title-part><text>by melting</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/355" definition-exists="false" ipc-concordant="B23K26/352" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K26/355</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Texturing</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/356" definition-exists="false" ipc-concordant="B23K26/356" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/356</classification-symbol><class-title><title-part><text>by shock processing</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/3568" definition-exists="false" ipc-concordant="B23K26/352" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K26/3568</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Modifying rugosity</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/3576" definition-exists="false" ipc-concordant="B23K26/352" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K26/3576</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Diminishing rugosity, e.g. grinding; Polishing; Smoothing</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/3584" definition-exists="false" ipc-concordant="B23K26/352" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K26/3584</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Increasing rugosity, e.g. roughening</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/359" definition-exists="false" ipc-concordant="B23K26/359" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/359</classification-symbol><class-title><title-part><text>by providing a line or line pattern, e.g. a dotted break initiation line</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/36" definition-exists="true" ipc-concordant="B23K26/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/36</classification-symbol><class-title date-revised="2015-10-01"><title-part><text>Removing material </text><reference><text><class-ref scheme="cpc">B23K26/55</class-ref>, <class-ref scheme="cpc">B23K26/57</class-ref> take precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/361" definition-exists="false" ipc-concordant="B23K26/361" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/361</classification-symbol><class-title><title-part><text>for deburring or mechanical trimming </text><reference><text><class-ref scheme="cpc">B23K26/351</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/362" definition-exists="false" ipc-concordant="B23K26/362" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/362</classification-symbol><class-title><title-part><text>Laser etching</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/364" definition-exists="false" ipc-concordant="B23K26/364" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/364</classification-symbol><class-title><title-part><text>for making a groove or trench, e.g. for scribing a break initiation groove</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/38" definition-exists="false" ipc-concordant="B23K26/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by boring or cutting</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/382" definition-exists="false" ipc-concordant="B23K26/382" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/382</classification-symbol><class-title><title-part><text>by boring</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/384" definition-exists="false" ipc-concordant="B23K26/384" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/384</classification-symbol><class-title><title-part><text>of specially shaped holes</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/386" definition-exists="false" ipc-concordant="B23K26/386" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/386</classification-symbol><class-title><title-part><text>of blind holes</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/388" definition-exists="false" ipc-concordant="B23K26/388" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/388</classification-symbol><class-title><title-part><text>Trepanning, i.e. boring by moving the beam spot about an axis</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K26/389" definition-exists="false" ipc-concordant="B23K26/382" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/389</classification-symbol><class-title><title-part><CPC-specific-text><text>of fluid openings, e.g. nozzles, jets </text><reference><text>laser machining of inkjet nozzles <class-ref scheme="cpc">B41J2/1634</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/40" definition-exists="true" ipc-concordant="B23K26/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K26/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>taking account of the properties of the material involved</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/402" definition-exists="true" ipc-concordant="B23K26/402" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/402</classification-symbol><class-title><title-part><text>involving non-metallic material, e.g. isolators</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/50" definition-exists="false" ipc-concordant="B23K26/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B23K26/50</classification-symbol><class-title><title-part><text>Working by transmitting the laser beam through or within the workpiece</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/53" definition-exists="false" ipc-concordant="B23K26/53" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/53</classification-symbol><class-title><title-part><text>for modifying or reforming the material inside the workpiece, e.g. for producing break initiation cracks</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/55" definition-exists="false" ipc-concordant="B23K26/55" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/55</classification-symbol><class-title><title-part><text>for creating voids inside the workpiece, e.g. for forming flow passages or flow patterns</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/57" definition-exists="false" ipc-concordant="B23K26/57" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/57</classification-symbol><class-title><title-part><text>the laser beam entering a face of the workpiece from which it is transmitted through the workpiece material to work on a different workpiece face, e.g. for effecting removal, fusion splicing, modifying or reforming</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/60" definition-exists="false" ipc-concordant="B23K26/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/60</classification-symbol><class-title><title-part><text>Preliminary treatment</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K26/70" definition-exists="false" ipc-concordant="B23K26/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/70</classification-symbol><class-title><title-part><text>Auxiliary operations or equipment</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K26/702" definition-exists="false" ipc-concordant="B23K26/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/702</classification-symbol><class-title><title-part><CPC-specific-text><text>Auxiliary equipment</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/703" definition-exists="false" ipc-concordant="B23K26/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/703</classification-symbol><class-title><title-part><CPC-specific-text><text>Cooling arrangements </text><reference><text>by using a fluid stream <class-ref scheme="cpc">B23K26/14</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/704" definition-exists="false" ipc-concordant="B23K26/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/704</classification-symbol><class-title><title-part><CPC-specific-text><text>Beam dispersers, e.g. beam wells</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/705" definition-exists="true" ipc-concordant="B23K26/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/705</classification-symbol><class-title><title-part><CPC-specific-text><text>Beam measuring device</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/706" definition-exists="true" ipc-concordant="B23K26/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/706</classification-symbol><class-title><title-part><CPC-specific-text><text>Protective screens</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K26/707" definition-exists="false" ipc-concordant="B23K26/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2015-10-01" status="published"><classification-symbol>B23K26/707</classification-symbol><class-title><title-part><CPC-specific-text><text>for monitoring laser beam transmission optics</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K28/00" definition-exists="true" ipc-concordant="B23K28/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K28/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K28/003" definition-exists="false" ipc-concordant="B23K28/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K28/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding in a furnace</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K28/006" definition-exists="false" ipc-concordant="B23K28/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K28/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding metals by means of an electrolyte </text><reference><text>working metal, e.g. cutting, by means of an electrolyte <class-ref scheme="cpc">B23H</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K28/02" definition-exists="false" ipc-concordant="B23K28/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K28/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combined welding or cutting procedures or apparatus</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K31/00" definition-exists="true" ipc-concordant="B23K31/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups </text><reference><text>making tubes or profiled bars involving operations other than soldering or welding <class-ref scheme="cpc">B21C37/04</class-ref>, <class-ref scheme="cpc">B21C37/08</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K31/003" definition-exists="false" ipc-concordant="B23K31/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>relating to controlling of welding distortion</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K31/006" definition-exists="false" ipc-concordant="B23K31/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>relating to using of neural networks</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K31/02" definition-exists="false" ipc-concordant="B23K31/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>relating to soldering or welding </text><reference><text>dip or wave soldering in the manufacture of printed circuits <class-ref scheme="cpc">H05K3/34</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K31/022" definition-exists="false" ipc-concordant="B23K31/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making profiled bars with soldered or welded seams</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K31/025" definition-exists="false" ipc-concordant="B23K31/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Connecting cutting edges or the like to tools; Attaching reinforcements to workpieces, e.g. wear-resisting zones to tableware</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K31/027" definition-exists="false" ipc-concordant="B23K31/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making tubes with soldering or welding</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K31/10" definition-exists="false" ipc-concordant="B23K31/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>relating to cutting or desurfacing</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K31/12" definition-exists="false" ipc-concordant="B23K31/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>relating to investigating the properties, e.g. the weldability, of materials</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K31/125" definition-exists="false" ipc-concordant="B23K31/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K31/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Weld quality monitoring</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K33/00" definition-exists="true" ipc-concordant="B23K33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K33/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Specially-profiled edge portions of workpieces for making soldering or welding connections</text></title-part><title-part><text>Filling the seams formed thereby </text><CPC-specific-text><reference><text><class-ref scheme="cpc">B23K11/14</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K33/002" definition-exists="false" ipc-concordant="B23K33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K33/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Crimping or bending the workpieces at the joining area</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K33/004" definition-exists="false" ipc-concordant="B23K33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K33/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Filling of continuous seams</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K33/006" definition-exists="false" ipc-concordant="B23K33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K33/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for cylindrical workpieces</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K33/008" definition-exists="false" ipc-concordant="B23K33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K33/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for automotive applications</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K35/00" definition-exists="true" ipc-concordant="B23K35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rods, electrodes, materials, or media, for use in soldering, welding, or cutting</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K35/001" definition-exists="true" ipc-concordant="B23K35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Interlayers, transition pieces for metallurgical bonding of workpieces</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/002" definition-exists="false" ipc-concordant="B23K35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>at least one of the workpieces being of light metal</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/004" definition-exists="false" ipc-concordant="B23K35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>at least one of the workpieces being of a metal of the iron group</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/005" definition-exists="false" ipc-concordant="B23K35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>at least one of the workpieces being of a refractory metal</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/007" definition-exists="false" ipc-concordant="B23K35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>at least one of the workpieces being of copper or another noble metal</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K35/008" definition-exists="false" ipc-concordant="B23K35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K2035/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>at least one of the workpieces being of silicium</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K35/02" definition-exists="true" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by mechanical features, e.g. shape</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/0205" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-consumable electrodes; C-electrodes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/0211" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0211</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for use in cutting </text><reference><text><class-ref scheme="cpc">B23K35/0205</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/0216" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0216</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rods, electrodes, wires</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/0222" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for use in soldering, brazing </text><reference><text><class-ref scheme="cpc">B23K35/0205</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/0227" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0227</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rods, wires </text><reference><text><class-ref scheme="cpc">B23K35/0244</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/0233" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0233</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sheets, foils </text><reference><text><class-ref scheme="cpc">B23K35/0244</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/0238" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0238</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>layered</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/0244" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0244</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Powders, particles or spheres; Preforms made therefrom</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/025" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pastes, creams, slurries</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/0255" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0255</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for use in welding </text><reference><text><class-ref scheme="cpc">B23K35/0205</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/0261" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0261</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rods, electrodes, wires</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/0266" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>flux-cored</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/0272" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0272</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with more than one layer of coating or sheathing material</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/0277" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0277</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of non-circular cross-section</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/0283" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0283</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>multi-cored; multiple</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/0288" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0288</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding studs</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/0294" definition-exists="false" ipc-concordant="B23K35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/0294</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Consumable guides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K35/22" definition-exists="true" ipc-concordant="B23K35/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the composition or nature of the material</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/222" definition-exists="false" ipc-concordant="B23K35/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-consumable electrodes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/224" definition-exists="false" ipc-concordant="B23K35/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/224</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Anti-weld compositions; Braze stop-off compositions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/226" definition-exists="false" ipc-concordant="B23K35/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/226</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-corrosive coatings; Primers applied before welding</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/228" definition-exists="false" ipc-concordant="B23K35/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/228</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Selection of materials for cutting</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/24" definition-exists="false" ipc-concordant="B23K35/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of soldering or welding materials proper </text><reference><text><class-ref scheme="cpc">B23K35/34</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/26" definition-exists="false" ipc-concordant="B23K35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the principal constituent melting at less than 400 degrees C</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/262" definition-exists="false" ipc-concordant="B23K35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/262</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sn as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/264" definition-exists="false" ipc-concordant="B23K35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/264</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bi as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/266" definition-exists="false" ipc-concordant="B23K35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cd as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/268" definition-exists="false" ipc-concordant="B23K35/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/268</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pb as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/28" definition-exists="false" ipc-concordant="B23K35/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the principal constituent melting at less than 950 degrees C</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/282" definition-exists="false" ipc-concordant="B23K35/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Zn as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/284" definition-exists="false" ipc-concordant="B23K35/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/284</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mg as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/286" definition-exists="false" ipc-concordant="B23K35/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Al as the principal constituent</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K35/288" definition-exists="false" ipc-concordant="B23K35/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/288</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with Sn or Zn</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/30" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the principal constituent melting at less than 1550 degrees C</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3006" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ag as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3013" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3013</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Au as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/302" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/302</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cu as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3026" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Mn as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3033" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ni as the principal constituent</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K35/304" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/304</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with Cr as the next major constituent</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3046" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Co as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3053" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3053</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fe as the principal constituent</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K35/306" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/306</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with C as next major constituent, e.g. cast iron</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K35/3066" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with Ni as next major constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K35/3073" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3073</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with Mn as next major constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K35/308" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/308</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with Cr as next major constituent</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="13" additional-only="false" sort-key="B23K35/3086" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>containing Ni or Mn</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K35/3093" definition-exists="false" ipc-concordant="B23K35/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3093</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with other elements as next major constituents</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/32" definition-exists="false" ipc-concordant="B23K35/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with the principal constituent melting at more than 1550 degrees C</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/322" definition-exists="false" ipc-concordant="B23K35/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/322</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>a Pt-group metal as principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/325" definition-exists="false" ipc-concordant="B23K35/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/325</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ti as the principal constituent</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/327" definition-exists="false" ipc-concordant="B23K35/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/327</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising refractory compounds, e.g. carbides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/34" definition-exists="false" ipc-concordant="B23K35/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>comprising compounds which yield metals when heated</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/36" definition-exists="true" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of non-metallic compositions, e.g. coatings, fluxes </text><reference><text><class-ref scheme="cpc">B23K35/34</class-ref> takes precedence</text></reference></title-part><title-part><text>Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest </text><reference><text>selection of soldering or welding materials proper <class-ref scheme="cpc">B23K35/24</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/3601" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-11-05" status="published"><classification-symbol>B23K35/3601</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inorganic compounds as principal constituents</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3602" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3602</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carbonates, basic oxides or hydroxides</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3603" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3603</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Halide salts</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23K35/3605" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3605</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluorides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3606" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3606</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Borates or B-oxides</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3607" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3607</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Silica or silicates</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3608" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3608</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Titania or titanates</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/361" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/361</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Alumina or aluminates</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3611" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3611</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Phosphates</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/3612" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3612</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with organic compounds as principal constituents</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3613" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3613</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Polymers, e.g. resins</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3615" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3615</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>N-compounds</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3616" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3616</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Halogen compounds</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3617" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3617</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>B-compounds</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K35/3618" definition-exists="false" ipc-concordant="B23K35/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/3618</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carboxylic acids or salts</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/362" definition-exists="false" ipc-concordant="B23K35/362" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/362</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of compositions of fluxes </text><reference><text><class-ref scheme="cpc">B23K35/365</class-ref>, <class-ref scheme="cpc">B23K35/368</class-ref> take precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/365" definition-exists="false" ipc-concordant="B23K35/365" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of non-metallic compositions of coating materials either alone or conjoint with selection of soldering or welding materials</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/368" definition-exists="false" ipc-concordant="B23K35/368" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/368</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/38" definition-exists="true" ipc-concordant="B23K35/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of media, e.g. special atmospheres for surrounding the working area</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/383" definition-exists="false" ipc-concordant="B23K35/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/383</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>mainly containing noble gases or nitrogen</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K35/386" definition-exists="false" ipc-concordant="B23K35/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/386</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for condensation soldering</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K35/40" definition-exists="true" ipc-concordant="B23K35/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making wire or rods for soldering or welding </text><reference><text>processes involving a single technical art, <u>see</u> the relevant subclasses, e.g. <class-ref scheme="cpc">B05D</class-ref>, <class-ref scheme="cpc">B21C</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/402" definition-exists="false" ipc-concordant="B23K35/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/402</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-consumable electrodes; C-electrodes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/404" definition-exists="false" ipc-concordant="B23K35/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/404</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coated rods; Coated electrodes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K35/406" definition-exists="false" ipc-concordant="B23K35/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K35/406</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Filled tubular wire or rods </text><reference><text><class-ref scheme="cpc">B23K35/402</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="B23K35/408" definition-exists="false" ipc-concordant="B23K35/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K2035/408</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with welded longitudinal seam</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23K37/00" definition-exists="true" ipc-concordant="B23K37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>B23K37/00</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups </text><reference><text>eye-shields for welders worn on the operator's body or carried in the hand <class-ref scheme="cpc">A61F9/00</class-ref> </text><CPC-specific-text><text>, i.e. <class-ref scheme="cpc">A61F9/02</class-ref></text></CPC-specific-text><text>; applicable to metal-working machines other than soldering, welding, or flame-cutting machines <class-ref scheme="cpc">B23Q</class-ref>; </text><CPC-specific-text><text>laser protective screens <class-ref scheme="cpc">B23K26/706</class-ref>; </text></CPC-specific-text><text> protective shields for other welding methods <class-ref scheme="cpc">F16P1/06</class-ref></text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K37/003" definition-exists="false" ipc-concordant="B23K37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K37/006" definition-exists="false" ipc-concordant="B23K37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Safety devices</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K37/02" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carriages for supporting the welding or cutting element</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0205" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>guided by hand</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0211" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0211</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>travelling on a guide member, e.g. rail, track</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0217" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0217</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the guide member being fixed to the workpiece</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K37/0223" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0223</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the guide member being a part of the workpiece</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0229" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0229</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the guide member being situated alongside the workpiece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0235" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0235</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the guide member forming part of a portal</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0241" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0241</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Attachments between the welding or cutting element and the carriage</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0247" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0247</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Driving means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0252" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0252</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Steering means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0258" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0258</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Electric supply or control circuits therefor</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0264" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0264</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>magnetically attached to the workpiece</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/027" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for making circular cuts or welds</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0276" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0276</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for working on or in tubes </text><reference><text><class-ref scheme="cpc">B23K37/0211</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0282" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carriages forming part of a welding unit</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0288" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0288</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Carriages forming part of a cutting unit</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0294" definition-exists="false" ipc-concordant="B23K37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0294</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Transport carriages or vehicles</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K37/04" definition-exists="false" ipc-concordant="B23K37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for holding or positioning work</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0408" definition-exists="false" ipc-concordant="B23K37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0408</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for planar work</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0417" definition-exists="false" ipc-concordant="B23K37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0417</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for spherical work</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0426" definition-exists="false" ipc-concordant="B23K37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0426</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fixtures for other work</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0435" definition-exists="false" ipc-concordant="B23K37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0435</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Clamps</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23K37/0443" definition-exists="false" ipc-concordant="B23K37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0443</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Jigs</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0452" definition-exists="false" ipc-concordant="B23K37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0452</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Orientable fixtures </text><reference><text><class-ref scheme="cpc">B23K37/0461</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/0461" definition-exists="false" ipc-concordant="B23K37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0461</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Welding tables</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/047" definition-exists="false" ipc-concordant="B23K37/047" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>moving work to adjust its position between soldering, welding or cutting steps </text><reference><text><class-ref scheme="cpc">B23K37/053</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23K37/053" definition-exists="false" ipc-concordant="B23K37/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/053</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>aligning cylindrical work</text></title-part><title-part><text>Clamping devices therefor</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0531" definition-exists="false" ipc-concordant="B23K37/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0531</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>internal pipe alignment clamps</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0533" definition-exists="false" ipc-concordant="B23K37/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0533</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>external pipe alignment clamps</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0535" definition-exists="false" ipc-concordant="B23K37/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0535</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>longitudinal pipe seam alignment clamps</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0536" definition-exists="false" ipc-concordant="B23K37/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0536</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for maintaining flanges on tubes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23K37/0538" definition-exists="false" ipc-concordant="B23K37/053" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/0538</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for rotating tubes, e.g. rollers</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K37/06" definition-exists="false" ipc-concordant="B23K37/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for positioning the molten material, e.g. confining it to a desired area</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23K37/08" definition-exists="false" ipc-concordant="B23K37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23K37/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for flash removal</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="B23K101/00" definition-exists="false" ipc-concordant="B23K101/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/00</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Articles made by soldering, welding or cutting</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/001" definition-exists="false" ipc-concordant="B23K101/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/001</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Turbines</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/002" definition-exists="false" ipc-concordant="B23K101/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/002</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Drill-bits</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/003" definition-exists="false" ipc-concordant="B23K101/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/003</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Pistons</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/005" definition-exists="false" ipc-concordant="B23K101/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/005</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Camshafts</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/006" definition-exists="false" ipc-concordant="B23K101/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/006</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Vehicles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/007" definition-exists="false" ipc-concordant="B23K101/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/007</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Marks, e.g. trade marks</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/008" definition-exists="false" ipc-concordant="B23K101/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/008</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Gears</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/02" definition-exists="false" ipc-concordant="B23K101/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/02</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Honeycomb structures</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/04" definition-exists="false" ipc-concordant="B23K101/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/04</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Tubular or hollow articles</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/045" definition-exists="false" ipc-concordant="B23K101/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/045</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Hollow panels</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/06" definition-exists="false" ipc-concordant="B23K101/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/06</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Tubes</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="B23K101/08" definition-exists="false" ipc-concordant="B23K101/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/08</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>finned or ribbed</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/10" definition-exists="false" ipc-concordant="B23K101/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/10</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Pipe-lines</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/12" definition-exists="false" ipc-concordant="B23K101/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/12</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Vessels</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="B23K101/125" definition-exists="false" ipc-concordant="B23K101/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/125</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Cans</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/14" definition-exists="false" ipc-concordant="B23K101/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/14</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Heat exchangers</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/16" definition-exists="false" ipc-concordant="B23K101/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/16</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Bands or sheets of indefinite length</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/18" definition-exists="false" ipc-concordant="B23K101/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/18</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Sheet panels</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/185" definition-exists="false" ipc-concordant="B23K101/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/185</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Tailored blanks</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/20" definition-exists="false" ipc-concordant="B23K101/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/20</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Tools</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/22" definition-exists="false" ipc-concordant="B23K101/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/22</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Nets, wire fabrics or the like</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/24" definition-exists="false" ipc-concordant="B23K101/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/24</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Frameworks</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/26" definition-exists="false" ipc-concordant="B23K101/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/26</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Railway- or like rails</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/28" definition-exists="false" ipc-concordant="B23K101/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/28</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Beams</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/30" definition-exists="false" ipc-concordant="B23K101/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/30</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Chains, hoops or rings</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/32" definition-exists="false" ipc-concordant="B23K101/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/32</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Wires</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/34" definition-exists="false" ipc-concordant="B23K101/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/34</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Coated articles </text><CPC-specific-text><text>, e.g. plated or painted; Surface treated articles</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/35" definition-exists="false" ipc-concordant="B23K101/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/35</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Surface treated articles</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K101/36" definition-exists="false" ipc-concordant="B23K101/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/36</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Electric or electronic devices</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/38" definition-exists="false" ipc-concordant="B23K101/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/38</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Conductors</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/40" definition-exists="false" ipc-concordant="B23K101/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/40</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Semiconductor devices</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K101/42" definition-exists="false" ipc-concordant="B23K101/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2101/42</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Printed circuits</text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="7" additional-only="true" sort-key="B23K103/00" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/00</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Materials to be soldered, welded or cut</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K103/02" definition-exists="false" ipc-concordant="B23K103/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/02</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Iron or ferrous alloys</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/04" definition-exists="false" ipc-concordant="B23K103/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/04</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Steel or steel alloys</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="B23K103/05" definition-exists="false" ipc-concordant="B23K103/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/05</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Stainless steel</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/06" definition-exists="false" ipc-concordant="B23K103/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/06</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Cast-iron alloys</text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K103/08" definition-exists="false" ipc-concordant="B23K103/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/08</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Non-ferrous metals or alloys</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/10" definition-exists="false" ipc-concordant="B23K103/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/10</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Aluminium or alloys thereof</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/12" definition-exists="false" ipc-concordant="B23K103/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/12</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Copper or alloys thereof</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/14" definition-exists="false" ipc-concordant="B23K103/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/14</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Titanium or alloys thereof</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/15" definition-exists="false" ipc-concordant="B23K103/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/15</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Magnesium or alloys thereof</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K103/16" definition-exists="false" ipc-concordant="B23K103/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/16</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Composite materials </text><CPC-specific-text><text>, e.g. fibre reinforced</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/166" definition-exists="false" ipc-concordant="B23K103/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/166</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Multilayered materials</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="B23K103/172" definition-exists="false" ipc-concordant="B23K103/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/172</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>wherein at least one of the layers is non-metallic</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K103/18" definition-exists="false" ipc-concordant="B23K103/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/18</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Dissimilar materials</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/20" definition-exists="false" ipc-concordant="B23K103/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/20</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Ferrous alloys and aluminium or alloys thereof</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/22" definition-exists="false" ipc-concordant="B23K103/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/22</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Ferrous alloys and copper or alloys thereof</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/24" definition-exists="false" ipc-concordant="B23K103/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/24</classification-symbol><class-title date-revised="2018-08-01"><title-part><text>Ferrous alloys and titanium or alloys thereof</text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/26" definition-exists="false" ipc-concordant="B23K103/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/26</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Alloys of Nickel and Cobalt and Chromium</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K103/30" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/30</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Organic material</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/32" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/32</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Material from living organisms, e.g. skins</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="B23K103/34" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/34</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Leather</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/36" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/36</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Wood or similar materials</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/38" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/38</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Fabrics, fibrous materials</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/40" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/40</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Paper</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/42" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/42</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Plastics </text><reference><text><class-ref scheme="cpc">B23K2103/16</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="B23K103/50" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/50</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Inorganic material, e.g. metals, not provided for in <class-ref scheme="cpc">B23K2103/02</class-ref> – <class-ref scheme="cpc">B23K2103/26</class-ref></text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/52" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/52</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Ceramics</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/54" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/54</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>Glass</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="B23K103/56" definition-exists="false" ipc-concordant="B23K103/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2018-08-01" status="published"><classification-symbol>B23K2103/56</classification-symbol><class-title date-revised="2018-08-01"><title-part><CPC-specific-text><text>semiconducting </text><reference><text>semiconducting devices <class-ref scheme="cpc">B23K2101/40</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme> |