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367 lines
189 KiB
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367 lines
189 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="F27B" definition-exists="true" date-revised="2019-08-01" status="published"><classification-symbol>F27B</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL</text></title-part><title-part><text>OPEN SINTERING OR LIKE APPARATUS</text></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>Attention is drawn to the references and notes following the title of class <class-ref scheme="cpc">F27</class-ref> and the note (par. III) following the Contents of Section <class-ref scheme="cpc">H</class-ref>.</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">F27B1/09</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">F27B1/08</class-ref></entry></row><row><entry><class-ref scheme="ipc">F27B5/05</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">F27B5/04</class-ref></entry></row><row><entry><class-ref scheme="ipc">F27B14/16</class-ref>, <class-ref scheme="ipc">F27B14/18</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">F27B14/0806</class-ref></entry></row><row><entry><class-ref scheme="ipc">F27B21/08</class-ref> - <class-ref scheme="ipc">F27B21/14</class-ref></entry><entry> covered by </entry><entry><class-ref scheme="cpc">F27D3/00</class-ref>, <class-ref scheme="cpc">F27D21/00</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="F27B1/00" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/00</classification-symbol>
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<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="F27B1/00" definition-exists="true" ipc-concordant="F27B1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaft or like vertical or substantially vertical furnaces </text><reference><text>for preheating, burning, calcining or cooling lime, magnesia or dolomite <class-ref scheme="cpc">C04B2/12</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="F27B1/005" definition-exists="false" ipc-concordant="F27B1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces</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="F27B1/02" definition-exists="false" ipc-concordant="F27B1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two or more shafts or chambers, e.g. multi-storey</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B1/025" definition-exists="false" ipc-concordant="F27B1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with fore-hearth</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="F27B1/04" definition-exists="false" ipc-concordant="F27B1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations or arrangements of shafts</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="F27B1/06" definition-exists="false" ipc-concordant="F27B1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of other than up-draught type</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="F27B1/08" definition-exists="false" ipc-concordant="F27B1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>heated otherwise than by solid fuel mixed with charge</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="F27B1/10" definition-exists="false" ipc-concordant="F27B1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details, accessories, or equipment peculiar to furnaces of these types</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B1/12" definition-exists="false" ipc-concordant="F27B1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shells or casings</text></title-part><title-part><text>Supports 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="F27B1/14" definition-exists="true" ipc-concordant="F27B1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of linings </text><reference><text>linings in general <class-ref scheme="cpc">F27D1/00</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="9" additional-only="false" sort-key="F27B1/16" definition-exists="true" ipc-concordant="F27B1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of tuyeres</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="F27B1/18" definition-exists="false" ipc-concordant="F27B1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of dust collectors</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="F27B1/20" definition-exists="true" ipc-concordant="F27B1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of devices for charging</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="F27B1/21" definition-exists="true" ipc-concordant="F27B1/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/21</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of devices for discharging</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="F27B1/22" definition-exists="true" ipc-concordant="F27B1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of heat-exchange apparatus </text><reference><text>heat-exchangers in general <class-ref scheme="cpc">F28C</class-ref>, <class-ref scheme="cpc">F28D</class-ref></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="F27B1/24" definition-exists="true" ipc-concordant="F27B1/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling arrangements</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="F27B1/26" definition-exists="true" ipc-concordant="F27B1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of controlling devices</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="F27B1/28" definition-exists="true" ipc-concordant="F27B1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B1/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of monitoring devices, of indicators, of alarm devices</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="F27B3/00" definition-exists="true" ipc-concordant="F27B3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hearth-type furnaces, e.g. of reverberatory type </text><reference><text><class-ref scheme="cpc">F27B9/00</class-ref>, <class-ref scheme="cpc">F27B11/00</class-ref>, <class-ref scheme="cpc">F27B13/00</class-ref>, <class-ref scheme="cpc">F27B14/00</class-ref>, <class-ref scheme="cpc">F27B15/00</class-ref>, <class-ref scheme="cpc">F27B21/00</class-ref> take precedence</text></reference></title-part><title-part><text>Tank furnaces</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F27B3/002" definition-exists="false" ipc-concordant="F27B3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Siemens-Martin type furnaces</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="F27B3/005" definition-exists="false" ipc-concordant="F27B3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Port construction</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="F27B3/007" definition-exists="false" ipc-concordant="F27B3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Removable burner head</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="F27B3/02" definition-exists="false" ipc-concordant="F27B3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of single-chamber fixed-hearth type</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="F27B3/04" definition-exists="true" ipc-concordant="F27B3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of multiple-hearth type</text></title-part><title-part><text>of multiple-chamber type</text></title-part><title-part><text>Combinations of hearth-type furnaces</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B3/045" definition-exists="false" ipc-concordant="F27B3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multiple chambers, e.g. one of which is used for charging</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="F27B3/06" definition-exists="false" ipc-concordant="F27B3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F27B3/06</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>with movable working chambers or hearths, e.g. tiltable </text><CPC-specific-text><text>, oscillating or describing a composed movement</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="F27B3/065" definition-exists="false" ipc-concordant="F27B3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>tiltable</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="F27B3/08" definition-exists="true" ipc-concordant="F27B3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>heated electrically, with or without any other source of heat</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B3/085" definition-exists="false" ipc-concordant="F27B3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arc furnaces</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="F27B3/10" definition-exists="false" ipc-concordant="F27B3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details, accessories, or equipment peculiar to hearth-type furnaces</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B3/105" definition-exists="false" ipc-concordant="F27B3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slag chamber</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="F27B3/12" definition-exists="false" ipc-concordant="F27B3/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Working chambers or casings</text></title-part><title-part><text>Supports therefor</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B3/125" definition-exists="false" ipc-concordant="F27B3/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2003/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hearths</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="F27B3/14" definition-exists="true" ipc-concordant="F27B3/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of linings</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="F27B3/16" definition-exists="true" ipc-concordant="F27B3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Walls</text></title-part><title-part><text>Roofs</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B3/165" definition-exists="false" ipc-concordant="F27B3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2003/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Roofs</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="F27B3/18" definition-exists="true" ipc-concordant="F27B3/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of devices for charging</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F27B3/183" definition-exists="false" ipc-concordant="F27B3/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Charging of arc furnaces vertically through the roof, e.g. in three points</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="F27B3/186" definition-exists="false" ipc-concordant="F27B3/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Charging in a vertical chamber adjacent to the melting chamber</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="F27B3/19" definition-exists="true" ipc-concordant="F27B3/19" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/19</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of devices for discharging</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="F27B3/20" definition-exists="true" ipc-concordant="F27B3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of heating 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="F27B3/205" definition-exists="false" ipc-concordant="F27B3/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Burners</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="F27B3/22" definition-exists="true" ipc-concordant="F27B3/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of air or gas supply 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="F27B3/225" definition-exists="false" ipc-concordant="F27B3/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Oxygen blowing</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="F27B3/24" definition-exists="true" ipc-concordant="F27B3/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling arrangements</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="F27B3/26" definition-exists="true" ipc-concordant="F27B3/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of heat-exchange apparatus</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F27B3/263" definition-exists="false" ipc-concordant="F27B3/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/263</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Regenerators</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="F27B3/266" definition-exists="false" ipc-concordant="F27B3/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Exhaust gases reversing flow devices</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="F27B3/28" definition-exists="true" ipc-concordant="F27B3/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B3/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of controlling, monitoring, alarm or the like devices</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="F27B5/00" definition-exists="true" ipc-concordant="F27B5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Muffle furnaces</text></title-part><title-part><text>Retort furnaces</text></title-part><title-part><text>Other furnaces in which the charge is held completely isolated </text><reference><text><class-ref scheme="cpc">F27B9/00</class-ref> takes precedence</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="F27B5/02" definition-exists="false" ipc-concordant="F27B5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of multiple-chamber type</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="F27B5/04" definition-exists="true" ipc-concordant="F27B5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>adapted for treating the charge in vacuum or special atmosphere</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="F27B5/06" definition-exists="false" ipc-concordant="F27B5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details, accessories, or equipment peculiar to furnaces of these types</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F27B5/062" definition-exists="false" ipc-concordant="F27B5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling elements</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="F27B5/064" definition-exists="false" ipc-concordant="F27B5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/064</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>disposed in the furnace, around the chamber, e.g. coils</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B5/066" definition-exists="false" ipc-concordant="F27B5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>disposed around the fan</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B5/068" definition-exists="false" ipc-concordant="F27B5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for external cooling</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="F27B5/08" definition-exists="true" ipc-concordant="F27B5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of linings</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="F27B5/10" definition-exists="false" ipc-concordant="F27B5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Muffles</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="F27B5/12" definition-exists="true" ipc-concordant="F27B5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of devices for charging</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="F27B5/13" definition-exists="true" ipc-concordant="F27B5/13" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/13</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of devices for discharging</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="F27B5/14" definition-exists="true" ipc-concordant="F27B5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of heating devices</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B5/143" definition-exists="false" ipc-concordant="F27B5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heating rods disposed in the chamber</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B5/146" definition-exists="false" ipc-concordant="F27B5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the heating rods being in the tubes which conduct the heating gases</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="F27B5/16" definition-exists="true" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of air or gas supply devices</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B5/161" definition-exists="false" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/161</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gas inflow or outflow</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B5/162" definition-exists="false" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/162</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>through closable or non-closable openings of the chamber walls</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B5/163" definition-exists="false" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlled openings, e.g. orientable</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="11" additional-only="true" sort-key="F27B5/164" definition-exists="false" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/164</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Air supply through a set of tubes with openings</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B5/165" definition-exists="false" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlled tubes, e.g. orientable or with closable openings</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="10" additional-only="true" sort-key="F27B5/166" definition-exists="false" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means to circulate the atmosphere</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B5/167" definition-exists="false" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/167</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the atmosphere being recirculated through the treatment chamber by a turbine</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B5/168" definition-exists="false" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/168</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by more than one turbine</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="11" additional-only="true" sort-key="F27B5/169" definition-exists="false" ipc-concordant="F27B5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2005/169</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the atmosphere being continuously renewed by exterior 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="F27B5/18" definition-exists="true" ipc-concordant="F27B5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B5/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of controlling, monitoring, alarm or like devices</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="F27B7/00" definition-exists="true" ipc-concordant="F27B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotary-drum furnaces, i.e. horizontal or slightly inclined</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F27B7/005" definition-exists="false" ipc-concordant="F27B7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for the treatment of slurries or wet materials</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="F27B7/02" definition-exists="false" ipc-concordant="F27B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of multiple-chamber or multiple-drum type</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F27B7/022" definition-exists="false" ipc-concordant="F27B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the drum having a non-uniform section along its length</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="F27B7/025" definition-exists="false" ipc-concordant="F27B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with different chambers, e.g. treatment zones</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="F27B7/027" definition-exists="false" ipc-concordant="F27B7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with more than one drum</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="F27B7/04" definition-exists="false" ipc-concordant="F27B7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with longitudinal divisions</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B7/041" definition-exists="false" ipc-concordant="F27B7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Longitudinal tubes</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B7/043" definition-exists="false" ipc-concordant="F27B7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the partition being a cylinder, coaxial to the rotary drum, defining two chambers</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/045" definition-exists="false" ipc-concordant="F27B7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the charge going in one direction in one chamber, then after a turn coming back in the other direction in the other chamber</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="10" additional-only="true" sort-key="F27B7/046" definition-exists="false" ipc-concordant="F27B7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Radial partitions</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/048" definition-exists="false" ipc-concordant="F27B7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/048</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>defining an helical chamber</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="F27B7/06" definition-exists="true" ipc-concordant="F27B7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>adapted for treating the charge in vacuum or special atmosphere</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="F27B7/08" definition-exists="false" ipc-concordant="F27B7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>externally heated</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="F27B7/10" definition-exists="false" ipc-concordant="F27B7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>internally heated, e.g. by means of passages in the wall</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="F27B7/12" definition-exists="false" ipc-concordant="F27B7/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>tiltable</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="F27B7/14" definition-exists="false" ipc-concordant="F27B7/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with means for agitating or moving the charge</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B7/16" definition-exists="false" ipc-concordant="F27B7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being fixed relatively to the drum, </text><CPC-specific-text><text>e.g. composite means</text></CPC-specific-text><reference><text><class-ref scheme="cpc">F27B7/04</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="F27B7/161" definition-exists="false" ipc-concordant="F27B7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/161</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the means comprising projections jutting out from the wall</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="F27B7/162" definition-exists="false" ipc-concordant="F27B7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/162</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the projections consisting of separate lifting elements, e.g. lifting shovels</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B7/163" definition-exists="false" ipc-concordant="F27B7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using only a ring of lifting elements to lift the charge</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="11" additional-only="true" sort-key="F27B7/165" definition-exists="false" ipc-concordant="F27B7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/165</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>forming a helical lifting projection</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="F27B7/166" definition-exists="false" ipc-concordant="F27B7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the means comprising chains</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="F27B7/167" definition-exists="false" ipc-concordant="F27B7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/167</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the means comprising partitions</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/168" definition-exists="false" ipc-concordant="F27B7/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/168</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Annular partition</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="F27B7/18" definition-exists="false" ipc-concordant="F27B7/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the means being movable within the drum</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="F27B7/20" definition-exists="true" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details, accessories, or equipment peculiar to rotary-drum furnaces</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F27B7/2008" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for reintroducing dust in the drum</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="F27B7/2016" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/2016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements of preheating devices for the charge</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="F27B7/2025" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/2025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of a single string of cyclones</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="F27B7/2033" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/2033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for precalcining the raw 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="F27B7/2041" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/2041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of at least two strings of cyclones with two different admissions of raw material</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="F27B7/205" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with precalcining means on the string supplied with exhaust gases from the cooler</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="F27B7/2058" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/2058</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with precalcining means on each string</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="F27B7/2066" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/2066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising a band transporter</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="F27B7/2075" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/2075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Removing incrustations</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="F27B7/2083" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/2083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for the melting of metals or the treatment of molten metals</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="F27B7/2091" definition-exists="false" ipc-concordant="F27B7/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2091</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means for eliminating compounds from gases by condensation, e.g. alkali metals</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="F27B7/22" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rotary drums</text></title-part><title-part><text>Supports 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="F27B7/2206" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/2206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Bearing rings</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/2213" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2213</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>mounted floatingly on the drum</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B7/222" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the mounting comprising radially resilient elements, e.g. springs</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B7/2226" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2226</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the mounting comprising elements to maintain the ring between series of abutments</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="11" additional-only="true" sort-key="F27B7/2233" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2233</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the ring being fixed to the drum, e.g. 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="10" additional-only="false" sort-key="F27B7/224" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/224</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Discharge ends</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B7/2246" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Support rollers</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/2253" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2253</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>mounted movable, e.g. resiliently on the ground</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B7/226" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/226</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>constituted of series of two rollers mounted on tiltable support along the drum</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B7/2266" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the mounting allowing a movement of the rollers support in a horizontal plane</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="11" additional-only="true" sort-key="F27B7/2273" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2273</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with arrangements, e.g. rollers, to maintain the drum against longitudinal movement</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/228" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/228</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising rollable bodies</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/2286" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>supporting the drum directly, without the use of a bearing ring</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="10" additional-only="true" sort-key="F27B7/2293" definition-exists="false" ipc-concordant="F27B7/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/2293</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the furnace being suspended</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="F27B7/24" definition-exists="true" ipc-concordant="F27B7/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Seals between rotary and stationary parts</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="F27B7/26" definition-exists="false" ipc-concordant="F27B7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Drives</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B7/261" definition-exists="false" ipc-concordant="F27B7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/261</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>working with a ring embracing the drum</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/262" definition-exists="false" ipc-concordant="F27B7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/262</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>A gear ring combined with a dented wheel drive</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/263" definition-exists="false" ipc-concordant="F27B7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/263</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>A gear ring combined with a ram drive</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/265" definition-exists="false" ipc-concordant="F27B7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the ring being mounted floatingly</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/266" definition-exists="false" ipc-concordant="F27B7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the ring being a bearing ring</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/267" definition-exists="false" ipc-concordant="F27B7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/267</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>A gear ring combined with a chain drive</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="10" additional-only="true" sort-key="F27B7/268" definition-exists="false" ipc-concordant="F27B7/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/268</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details of the motor or the pinions</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="F27B7/28" definition-exists="true" ipc-concordant="F27B7/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of linings</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="F27B7/30" definition-exists="true" ipc-concordant="F27B7/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of partitions</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="F27B7/32" definition-exists="true" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of devices for charging</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F27B7/3205" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/3205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Charging</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/3211" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3211</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>at the open end of the drum</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B7/3217" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3217</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>axially, optionally at some distance in the kiln</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F27B7/3223" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3223</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the charging device being movable axially, e.g. reciprocable</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F27B7/3229" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3229</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>via a centrifugal device</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F27B7/3235" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3235</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the introducing device comprising a spray or a lance</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F27B7/3241" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3241</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in the flame of the burner</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="11" additional-only="true" sort-key="F27B7/3247" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3247</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>through a lateral opening in the drum</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B7/3252" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3252</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with lifting scoops attached to the drum</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="11" additional-only="true" sort-key="F27B7/3258" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3258</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>at the open end of the drum</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B7/3264" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3264</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using special discharge means located around the discharge end, e.g. lifting scoops or a transversal annular partition</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="11" additional-only="true" sort-key="F27B7/327" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/327</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>centrifugally through lateral openings in the drum</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/3276" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3276</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a collector means extending longitudinally into the drum</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="10" additional-only="true" sort-key="F27B7/3282" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/3288" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3288</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Sieves or grading means</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/3294" definition-exists="false" ipc-concordant="F27B7/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/3294</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means to fluidise the charge in the air</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="F27B7/33" definition-exists="true" ipc-concordant="F27B7/33" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/33</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of devices for discharging</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="F27B7/34" definition-exists="false" ipc-concordant="F27B7/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of heating devices</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="F27B7/36" definition-exists="false" ipc-concordant="F27B7/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of air or gas supply 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="F27B7/362" definition-exists="false" ipc-concordant="F27B7/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/362</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Introducing gas into the drum axially or through the wall</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/365" definition-exists="false" ipc-concordant="F27B7/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/365</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>longitudinally</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B7/367" definition-exists="false" ipc-concordant="F27B7/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2007/367</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>transversally through the wall of the drum</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="F27B7/38" definition-exists="true" ipc-concordant="F27B7/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of cooling 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="F27B7/383" definition-exists="false" ipc-concordant="F27B7/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/383</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling devices for the charge</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="F27B7/386" definition-exists="false" ipc-concordant="F27B7/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/386</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rotary-drum cooler</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="F27B7/40" definition-exists="true" ipc-concordant="F27B7/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Planetary coolers</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="F27B7/42" definition-exists="true" ipc-concordant="F27B7/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B7/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of controlling, monitoring, alarm or like devices</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="F27B9/00" definition-exists="true" ipc-concordant="F27B9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Furnaces through which the charge is moved mechanically, e.g. of tunnel type </text><reference><text><class-ref scheme="cpc">F27B7/14</class-ref> takes precedence</text></reference></title-part><title-part><text>Similar furnaces in which the charge moves by gravity</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F27B9/02" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of multiple-track type</text></title-part><title-part><text>of multiple-chamber type</text></title-part><title-part><text>Combinations of furnaces</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B9/021" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/021</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having two or more parallel tracks</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="F27B9/022" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>With two tracks moving in opposite 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="F27B9/023" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a U turn at one end</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="F27B9/024" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/024</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with superimposed tracks</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="F27B9/025" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having two or more superimposed tracks </text><reference><text><class-ref scheme="cpc">F27B9/024</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="9" additional-only="true" sort-key="F27B9/026" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B2009/026</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Two or more conveyors, e.g. mounted successively</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="F27B9/027" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>working in parallel</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="F27B9/028" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/028</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multi-chamber type furnaces, </text><reference><text><class-ref scheme="cpc">F27B9/029</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="F27B9/029" definition-exists="false" ipc-concordant="F27B9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/029</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Multicellular type furnaces constructed with add-on modules</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="F27B9/04" definition-exists="true" ipc-concordant="F27B9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>adapted for treating the charge in vacuum or special atmosphere</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B9/042" definition-exists="false" ipc-concordant="F27B9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Vacuum furnaces</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="F27B9/045" definition-exists="false" ipc-concordant="F27B9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Furnaces with controlled atmosphere</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="F27B9/047" definition-exists="false" ipc-concordant="F27B9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the atmosphere consisting of protective gases</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="F27B9/06" definition-exists="true" ipc-concordant="F27B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>heated without contact between combustion gases and charge</text></title-part><title-part><text>electrically heated</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B9/061" definition-exists="false" ipc-concordant="F27B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-01-01" status="published"><classification-symbol>F27B9/061</classification-symbol><class-title date-revised="2017-01-01"><title-part><CPC-specific-text><text>with at least two longitudinal chambers carrying combustion gases, i.e. of the Dressler type</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="F27B9/062" definition-exists="false" ipc-concordant="F27B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/062</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>electrically heated</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="F27B9/063" definition-exists="false" ipc-concordant="F27B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Resistor heating, e.g. with resistors also emitting IR rays</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="F27B9/065" definition-exists="false" ipc-concordant="F27B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/065</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>the resistance being transported by the conveyor</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="F27B9/066" definition-exists="false" ipc-concordant="F27B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>heated by lamps</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="F27B9/067" definition-exists="false" ipc-concordant="F27B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/067</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>heated by induction</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="F27B9/068" definition-exists="false" ipc-concordant="F27B9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>heated by radiant tubes, the tube being heated by a hot medium, e.g. hot gases</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="F27B9/08" definition-exists="false" ipc-concordant="F27B9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>heated through chamber walls</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F27B9/082" definition-exists="false" ipc-concordant="F27B9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Muffle furnaces</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="F27B9/084" definition-exists="false" ipc-concordant="F27B9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the muffle being fixed and in a single piece</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="F27B9/086" definition-exists="false" ipc-concordant="F27B9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more fixed muffles</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="F27B9/088" definition-exists="false" ipc-concordant="F27B9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Series of separate muffles conveyed through the furnace</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="F27B9/10" definition-exists="false" ipc-concordant="F27B9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>heated by hot air or gas</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="F27B9/12" definition-exists="false" ipc-concordant="F27B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with special arrangements for preheating or cooling the charge</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F27B9/122" definition-exists="false" ipc-concordant="F27B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preheating</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="F27B9/124" definition-exists="false" ipc-concordant="F27B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling</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="F27B9/126" definition-exists="false" ipc-concordant="F27B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving the circulation of cooling gases, e.g. air</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/128" definition-exists="false" ipc-concordant="F27B9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the gases being further utilised as oxidants in the burners</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="F27B9/14" definition-exists="true" ipc-concordant="F27B9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>characterised by the path of the charge during treatment</text></title-part><title-part><text>characterised by the means by which the charge is moved during treatment </text><reference><text><class-ref scheme="cpc">F27B9/28</class-ref> takes precedence; travelling or movable supports or containers for the charge <class-ref scheme="cpc">F27D3/12</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="F27B9/142" definition-exists="false" ipc-concordant="F27B9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the charge moving along a vertical axis</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="F27B9/145" definition-exists="false" ipc-concordant="F27B9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the charge moving along a serpentine path</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="F27B9/147" definition-exists="false" ipc-concordant="F27B9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the charge moving on an inclined floor</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="F27B9/16" definition-exists="false" ipc-concordant="F27B9/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the charge moving in a circular or arcuate path</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F27B9/18" definition-exists="false" ipc-concordant="F27B9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>under the action of scrapers or pushers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F27B9/185" definition-exists="false" ipc-concordant="F27B9/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>multiple hearth type furnaces</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="F27B9/20" definition-exists="false" ipc-concordant="F27B9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the charge moving in a substantially straight path </text><CPC-specific-text><text>tunnel furnace</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="F27B9/201" definition-exists="false" ipc-concordant="F27B9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/201</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>walking beam furnace</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="F27B9/202" definition-exists="false" ipc-concordant="F27B9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/202</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Conveyor mechanisms therefor</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="F27B9/203" definition-exists="false" ipc-concordant="F27B9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/203</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having ramps </text><reference><text><class-ref scheme="cpc">F27B9/206</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="12" additional-only="false" sort-key="F27B9/205" definition-exists="false" ipc-concordant="F27B9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having excentrics or lever arms </text><reference><text><class-ref scheme="cpc">F27B9/206</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="12" additional-only="false" sort-key="F27B9/206" definition-exists="false" ipc-concordant="F27B9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>consisting of a single central beam</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="F27B9/207" definition-exists="false" ipc-concordant="F27B9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/207</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>consisting of two or more conveyors</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="F27B9/208" definition-exists="false" ipc-concordant="F27B9/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/208</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the workpieces being rotated during their advance</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="F27B9/22" definition-exists="false" ipc-concordant="F27B9/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>on rails, e.g.</text></CPC-specific-text><text> under the action of scrapers or pushers </text><reference><text><class-ref scheme="cpc">F27B9/26</class-ref> takes precedence</text></reference></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F27B9/222" definition-exists="false" ipc-concordant="F27B9/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/222</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the path comprising a section specially adapted for effecting equalisation of the temperature of the charge</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="F27B9/225" definition-exists="false" ipc-concordant="F27B9/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the charge being subjected to an additional manipulation along the path</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="F27B9/227" definition-exists="false" ipc-concordant="F27B9/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/227</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with rotation of the charge </text><reference><text><class-ref scheme="cpc">F27B9/147</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="F27B9/24" definition-exists="true" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/24</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>being carried by a conveyor </text><CPC-specific-text><reference><text>transport by conveyors in general <class-ref scheme="cpc">B65G</class-ref></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="F27B9/2407" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/2407</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>the conveyor being constituted by rollers (roller hearth furnace)</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="F27B9/2415" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/2415</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the charge rotating about an axis transversal to the axis of advancement of the charge</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="F27B9/2423" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/2423</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the charge rotating about an axis parallel to the axis of advancement of the charge</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="F27B9/243" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/243</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Endless-strand conveyor</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B9/2438" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/2438</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means to transfer the heat from the outcoming band to the incoming band</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B9/2446" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/2446</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means to control the tension of the band</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="F27B9/2453" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/2453</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>Vibrating conveyor (shaker hearth furnace)</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="F27B9/2461" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/2461</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>the charge being suspended from the conveyor</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="F27B9/2469" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/2469</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>the conveyor being constituted by rollable bodies</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="F27B9/2476" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B9/2476</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>the conveyor being constituted by air cushion</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/2484" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B2009/2484</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>the conveyor being a helical device</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/2492" definition-exists="false" ipc-concordant="F27B9/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B2009/2492</classification-symbol><class-title date-revised="2016-05-01"><title-part><CPC-specific-text><text>the conveyor being constituted by series of little rams or ratchets, moving the charge along</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="F27B9/26" definition-exists="true" ipc-concordant="F27B9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>on or in trucks, sleds, or containers</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="F27B9/262" definition-exists="false" ipc-concordant="F27B9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/262</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>on or in trucks</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B9/264" definition-exists="false" ipc-concordant="F27B9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/264</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the truck carrying a partition</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="12" additional-only="true" sort-key="F27B9/266" definition-exists="false" ipc-concordant="F27B9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the truck having conducts for guiding the oven atmosphere</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="13" additional-only="true" sort-key="F27B9/268" definition-exists="false" ipc-concordant="F27B9/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/268</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>through the structure of the car and through the charge</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></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="F27B9/28" definition-exists="false" ipc-concordant="F27B9/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for treating continuous lengths of work</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="F27B9/30" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details, accessories, or equipment peculiar to furnaces of these types</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B9/3005" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/3005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>arrangements for circulating 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="F27B9/3011" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/3011</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>arrangements for circulating gases transversally</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/3016" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with arrangements to circulate gases through the charge</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/3022" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3022</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with arrangements to maintain oxidising reducing or neutral zones</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="10" additional-only="true" sort-key="F27B9/3027" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3027</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Use of registers, partitions</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/3033" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fumes circulating in the same direction as the charge</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/3038" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3038</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fumes or gases alternatively changing their longitudinal direction</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="F27B9/3044" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/3044</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Furnace regenerators</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="F27B9/305" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Particular conformation of the furnace</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="F27B9/3055" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3055</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Non-uniform section through the length of the furnace</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/3061" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Furnaces with longitudinal grooves</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="F27B9/3066" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling the under-structure of the kiln, e.g. under the cars</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="F27B9/3072" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3072</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Balancing the pressure between the upper part and the lower part of the kiln, above and under the track</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="F27B9/3077" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/3077</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements for treating electronic components, e.g. semiconductors</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="F27B9/3083" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements to handle skid marks</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="F27B9/3088" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Drying arrangements</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="F27B9/3094" definition-exists="false" ipc-concordant="F27B9/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3094</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Means to store a part of the charge in the furnace</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="F27B9/32" definition-exists="false" ipc-concordant="F27B9/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Casings</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F27B9/34" definition-exists="true" ipc-concordant="F27B9/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of linings</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="F27B9/36" definition-exists="true" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of heating devices</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/3607" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3607</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heaters located above the track of the charge</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/3615" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3615</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Burner in the ceiling directed vertically downwards</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="10" additional-only="true" sort-key="F27B9/3623" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3623</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heaters located under the track</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/363" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/363</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Burners in the hearth directed towards the ceiling</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="10" additional-only="true" sort-key="F27B9/3638" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3638</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heaters located above and under the track</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/3646" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3646</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heating the ceiling or the walls for a reverberatory effect</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/3653" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3653</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preheated fuel</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/3661" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3661</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>preheated with the exhaust gases</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/3669" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3669</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>preheated with the gases of the cooling zone</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/3676" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3676</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>preheated with the gases of the preheating zone</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="10" additional-only="true" sort-key="F27B9/3684" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3684</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Combustion within a combustion chamber with outlets in the kiln chamber</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/3692" definition-exists="false" ipc-concordant="F27B9/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/3692</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>The charge containing combustible 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="F27B9/38" definition-exists="true" ipc-concordant="F27B9/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of devices for charging</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/382" definition-exists="false" ipc-concordant="F27B9/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/382</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Charging</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/384" definition-exists="false" ipc-concordant="F27B9/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/384</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Discharging</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B9/386" definition-exists="false" ipc-concordant="F27B9/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/386</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lateral intake or outtake</text></CPC-specific-text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="11" additional-only="true" sort-key="F27B9/388" definition-exists="false" ipc-concordant="F27B9/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2009/388</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Centrally in the lateral wall</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="F27B9/39" definition-exists="true" ipc-concordant="F27B9/39" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/39</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of devices for discharging</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="F27B9/40" definition-exists="true" ipc-concordant="F27B9/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B9/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of controlling or monitoring devices</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="F27B11/00" definition-exists="true" ipc-concordant="F27B11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Bell-type furnaces </text><reference><text>for treating metal strips or wire <class-ref scheme="cpc">C21D9/663</class-ref></text></reference></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="F27B13/00" definition-exists="false" ipc-concordant="F27B13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F27B13/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F27B13/02" definition-exists="false" ipc-concordant="F27B13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of multiple-chamber type with permanent partitions</text></title-part><title-part><text>Combinations of furnaces</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="F27B13/04" definition-exists="false" ipc-concordant="F27B13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B13/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of single-chamber type with temporary partitions</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="F27B13/06" definition-exists="false" ipc-concordant="F27B13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B13/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details, accessories, or equipment peculiar to furnaces of this type</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B13/08" definition-exists="false" ipc-concordant="F27B13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B13/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Casings</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="F27B13/10" definition-exists="true" ipc-concordant="F27B13/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B13/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of linings</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="F27B13/12" definition-exists="true" ipc-concordant="F27B13/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B13/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of heating devices</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="F27B13/14" definition-exists="true" ipc-concordant="F27B13/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B13/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of controlling, monitoring, alarm or like devices</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="F27B14/00" definition-exists="true" ipc-concordant="F27B14/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>F27B14/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Crucible or pot furnaces</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="8" additional-only="true" sort-key="F27B14/002" definition-exists="false" ipc-concordant="F27B14/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Smelting process, e.g. sequences to melt a specific 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="F27B14/004" definition-exists="false" ipc-concordant="F27B14/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Process involving a smelting step, e.g. vaporisation</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="F27B14/006" definition-exists="false" ipc-concordant="F27B14/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>involving a salt bath or help metal bath</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="F27B14/008" definition-exists="false" ipc-concordant="F27B14/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Continuous casting</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="F27B14/02" definition-exists="false" ipc-concordant="F27B14/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with tilting or rocking arrangements </text><reference><text><class-ref scheme="cpc">F27B14/04</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="F27B14/04" definition-exists="true" ipc-concordant="F27B14/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>adapted for treating the charge in vacuum or special atmosphere</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="9" additional-only="true" sort-key="F27B14/045" definition-exists="false" ipc-concordant="F27B14/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Vacuum</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="F27B14/06" definition-exists="true" ipc-concordant="F27B14/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>heated electrically, e.g. induction crucible furnaces with or without any other source of heat </text><reference><text><class-ref scheme="cpc">F27B14/04</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="F27B14/061" definition-exists="false" ipc-concordant="F27B14/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/061</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Induction furnaces</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="F27B14/063" definition-exists="false" ipc-concordant="F27B14/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Skull melting type</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="F27B14/065" definition-exists="false" ipc-concordant="F27B14/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Channel type</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B14/066" definition-exists="false" ipc-concordant="F27B14/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Construction of the induction furnace</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="F27B14/068" definition-exists="false" ipc-concordant="F27B14/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/068</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with the use of an electrode producing a current in the melt</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="F27B14/08" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details peculiar to crucible or pot furnaces</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B14/0806" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/0806</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Charging or discharging devices</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="F27B14/0812" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0812</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Continuously charging</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B14/0818" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0818</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Discharging</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="F27B14/0825" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0825</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Crucible or pot support</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="F27B14/0831" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0831</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Support or means for the transport of crucibles</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="F27B14/0837" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0837</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling arrangements</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="F27B14/0843" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0843</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lining or casing</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="F27B14/085" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preheating of the charge</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="F27B14/0856" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0856</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preheating of the crucible</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="F27B14/0862" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0862</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Flux guides</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="F27B14/0868" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0868</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Magnetic shields</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="F27B14/0875" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0875</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Two zones or chambers, e.g. one used for charging</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="F27B14/0881" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0881</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Two or more crucibles</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="F27B14/0887" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0887</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Movement of the melt</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="F27B14/0893" definition-exists="false" ipc-concordant="F27B14/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/0893</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heat-conductive material disposed on the surface of the melt</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="F27B14/10" definition-exists="true" ipc-concordant="F27B14/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Crucibles</text></title-part></class-title>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B14/102" definition-exists="false" ipc-concordant="F27B14/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Form of the crucibles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B14/104" definition-exists="false" ipc-concordant="F27B14/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Crucible linings</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B14/106" definition-exists="false" ipc-concordant="F27B14/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Ladles</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B14/108" definition-exists="false" ipc-concordant="F27B14/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cold crucibles (transparent to electromagnetic radiations)</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="F27B14/12" definition-exists="true" ipc-concordant="F27B14/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Covers therefor</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="F27B14/14" definition-exists="true" ipc-concordant="F27B14/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of heating 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="F27B14/143" definition-exists="false" ipc-concordant="F27B14/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heating of the crucible by convection of combustion gases</text></CPC-specific-text></title-part></class-title></classification-item>
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<classification-item breakdown-code="true" not-allocatable="false" level="10" additional-only="true" sort-key="F27B14/146" definition-exists="false" ipc-concordant="F27B14/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2014/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Recuperation of lost heat, e.g. regenerators</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="F27B14/20" definition-exists="true" ipc-concordant="F27B14/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B14/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangement of controlling, monitoring, alarm or like devices</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="F27B15/00" definition-exists="true" ipc-concordant="F27B15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>F27B15/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Fluidised-bed furnaces</text></title-part><title-part><text>Other furnaces using or treating finely-divided materials in dispersion </text><CPC-specific-text><reference><text>apparatus in general for carrying out chemical or physical processes in a fluidised bed reactor <class-ref scheme="cpc">B01J8/24</class-ref> - <class-ref scheme="cpc">B01J8/44</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="F27B15/003" definition-exists="false" ipc-concordant="F27B15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cyclones or chain of cyclones</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="F27B15/006" definition-exists="false" ipc-concordant="F27B15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Equipment for treating dispersed material falling under gravity with ascending gases</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="F27B15/02" definition-exists="false" ipc-concordant="F27B15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Details, accessories, or equipment peculiar to furnaces of these types</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B15/04" definition-exists="false" ipc-concordant="F27B15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Casings</text></title-part><title-part><text>Supports 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="F27B15/06" definition-exists="true" ipc-concordant="F27B15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of linings</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="F27B15/08" definition-exists="true" ipc-concordant="F27B15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of devices for charging</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="F27B15/09" definition-exists="true" ipc-concordant="F27B15/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/09</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of devices for discharging</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="F27B15/10" definition-exists="false" ipc-concordant="F27B15/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of air or gas supply devices</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="F27B15/12" definition-exists="false" ipc-concordant="F27B15/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of dust collectors</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="F27B15/14" definition-exists="false" ipc-concordant="F27B15/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of heating devices</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="F27B15/16" definition-exists="false" ipc-concordant="F27B15/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of cooling devices</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="F27B15/18" definition-exists="true" ipc-concordant="F27B15/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of controlling devices</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="F27B15/20" definition-exists="true" ipc-concordant="F27B15/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B15/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements of monitoring devices, of indicators, of alarm devices</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="F27B17/00" definition-exists="true" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Furnaces of a kind not covered by any preceding group </text><reference><text>structural combinations of furnaces <class-ref scheme="cpc">F27B19/02</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="F27B17/0008" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/0008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Open field furnace for burning bricks</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="F27B17/0016" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/0016</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Chamber type furnaces</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="F27B17/0025" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/0025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Especially adapted for treating semiconductor wafers</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="F27B17/0033" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/0033</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the floor of the furnaces consisting of the support carrying the charge, e.g. car type furnaces</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="F27B17/0041" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/0041</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>specially adapted for burning bricks or pottery </text><reference><text><class-ref scheme="cpc">F27B17/0033</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="F27B17/005" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with cylindrical chambers</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="F27B17/0058" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/0058</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with superposed cylindrical chambers</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="F27B17/0066" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/0066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>arrangement of the charge, e.g. bricks</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="F27B17/0075" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/0075</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heating devices 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="9" additional-only="false" sort-key="F27B17/0083" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/0083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with means for circulating the atmosphere</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="F27B17/0091" definition-exists="false" ipc-concordant="F27B17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B2017/0091</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Series of chambers, e.g. associated in their use</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="F27B17/02" definition-exists="true" ipc-concordant="F27B17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially designed for laboratory use</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="F27B17/025" definition-exists="false" ipc-concordant="F27B17/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B17/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for dental workpieces</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="F27B19/00" definition-exists="false" ipc-concordant="F27B19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B19/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Combinations of furnaces of kinds not covered by a single preceding main group</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F27B19/02" definition-exists="false" ipc-concordant="F27B19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B19/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>combined in one structure</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="F27B19/04" definition-exists="false" ipc-concordant="F27B19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B19/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>arranged for associated working</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="F27B21/00" definition-exists="false" ipc-concordant="F27B21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B21/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Open or uncovered sintering apparatus</text></title-part><title-part><text>Other heat-treatment apparatus of like construction</text></title-part></class-title>
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<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="F27B21/02" definition-exists="false" ipc-concordant="F27B21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B21/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sintering grates or tables</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="F27B21/04" definition-exists="false" ipc-concordant="F27B21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B21/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Sintering pots or sintering pans</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="F27B21/06" definition-exists="false" ipc-concordant="F27B21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>F27B21/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Endless-strand sintering machines</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></class-scheme> |