blabla/PATSTAT/CPC_data/CPCSchemeXML202302/cpc-scheme-B21C.xml

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<class-scheme publication-date="2023-02-01" scheme-type="cpc" publication-type="official">
<classification-item breakdown-code="false" not-allocatable="true" level="5" additional-only="false" sort-key="B21C" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>B21C</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING</text></title-part><title-part><text>AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL</text></title-part></class-title><notes-and-warnings><note type="warning"><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>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="B21C1/00" date-revised="2021-01-01" status="published"><classification-symbol>B21C1/00</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Metal drawing</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C1/00" definition-exists="true" ipc-concordant="B21C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C1/003" definition-exists="true" ipc-concordant="B21C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C1/006" definition-exists="true" ipc-concordant="B21C1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using vibratory energy</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C1/02" definition-exists="true" ipc-concordant="B21C1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C1/04" definition-exists="true" ipc-concordant="B21C1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with two or more dies operating in series</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C1/06" definition-exists="true" ipc-concordant="B21C1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the material slips on the drums</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C1/08" definition-exists="true" ipc-concordant="B21C1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>in which the material does not slip on the drums</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C1/10" definition-exists="true" ipc-concordant="B21C1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with accumulation of material between consecutively-arranged dies</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C1/12" definition-exists="true" ipc-concordant="B21C1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C1/12</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Regulating or controlling speed of drawing drums, e.g. to influence tension</text></title-part><title-part><text>Drives</text></title-part><title-part><text>Stop or relief mechanisms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C1/14" definition-exists="true" ipc-concordant="B21C1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C1/14</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Drums, e.g. capstans</text></title-part><title-part><text>Connection of grippers thereto</text></title-part><title-part><text>Grippers specially adapted for drawing machines or apparatus of the drum type</text></title-part><title-part><text>Couplings specially adapted for these drums</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C1/16" definition-exists="true" ipc-concordant="B21C1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B21C1/16</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C1/18" definition-exists="true" ipc-concordant="B21C1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from stock of limited length </text><reference><text><class-ref scheme="cpc">B21C1/22</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C1/20" definition-exists="true" ipc-concordant="B21C1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from stock of essentially unlimited length </text><reference><text><class-ref scheme="cpc">B21C1/22</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C1/22" definition-exists="true" ipc-concordant="B21C1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>specially adapted for making tubular articles </text><reference><text>bending sheet metal into tubular form by drawing <class-ref scheme="cpc">B21D5/10</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C1/24" definition-exists="true" ipc-concordant="B21C1/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C1/24</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>by means of mandrels</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C1/26" definition-exists="true" ipc-concordant="B21C1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Push-bench drawing</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C1/27" definition-exists="true" ipc-concordant="B21C1/27" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/27</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Carriages</text></title-part><title-part><text>Drives</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C1/28" definition-exists="true" ipc-concordant="B21C1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C1/28</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Carriages</text></title-part><title-part><text>Connections of grippers thereto</text></title-part><title-part><text>Grippers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C1/30" definition-exists="true" ipc-concordant="B21C1/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Drives, e.g. carriage-traversing mechanisms</text></title-part><title-part><text>Driving elements, e.g. drawing chains</text></title-part><title-part><text>Controlling the drive </text><CPC-specific-text><reference><text>endlessly revolving chain systems for metal coiling: <class-ref scheme="cpc">B21C47/3458</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C1/305" definition-exists="true" ipc-concordant="B21C1/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Linear motor pulling devices</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C1/32" definition-exists="true" ipc-concordant="B21C1/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Feeding or discharging the material or mandrels</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C1/34" definition-exists="true" ipc-concordant="B21C1/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C1/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Guiding or supporting the material or mandrels</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C3/00" definition-exists="true" ipc-concordant="B21C3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Profiling tools for metal drawing</text></title-part><title-part><text>Combinations of dies and mandrels</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C3/02" definition-exists="false" ipc-concordant="B21C3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dies</text></title-part><title-part><text>Selection of material therefor</text></title-part><title-part><text>Cleaning thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C3/025" definition-exists="false" ipc-concordant="B21C3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C3/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>comprising diamond parts</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C3/04" definition-exists="false" ipc-concordant="B21C3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with non-adjustable section </text><reference><text><class-ref scheme="cpc">B21C3/08</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C3/06" definition-exists="false" ipc-concordant="B21C3/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C3/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with adjustable section </text><reference><text><class-ref scheme="cpc">B21C3/08</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C3/08" definition-exists="false" ipc-concordant="B21C3/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C3/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with section defined by rollers, balls, or the like</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C3/10" definition-exists="false" ipc-concordant="B21C3/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C3/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with hydraulic forces acting immediately on work</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C3/12" definition-exists="false" ipc-concordant="B21C3/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C3/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Die holders</text></title-part><title-part><text>Rotating dies</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C3/14" definition-exists="false" ipc-concordant="B21C3/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C3/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Die holders combined with devices for guiding the drawing material or combined with devices for cooling heating, or lubricating</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C3/16" definition-exists="true" ipc-concordant="B21C3/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C3/16</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Mandrels</text></title-part><title-part><text>Mounting or adjusting same</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C3/18" definition-exists="false" ipc-concordant="B21C3/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B21C3/18</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Making tools by operations not covered by a single other subclass</text></title-part><title-part><text>Repairing</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C5/00" definition-exists="true" ipc-concordant="B21C5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Pointing</text></title-part><title-part><text>Push-pointing</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C5/003" definition-exists="false" ipc-concordant="B21C5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C5/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of hollow material, e.g. tube</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C5/006" definition-exists="false" ipc-concordant="B21C5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C5/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of solid material, e.g. wire or profiles</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C9/00" definition-exists="true" ipc-concordant="B21C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling, heating or lubricating drawing material </text><reference><text><class-ref scheme="cpc">B21C3/14</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C9/005" definition-exists="false" ipc-concordant="B21C9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C9/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cold application of the lubricant </text><reference><text>when combined with heating steps <class-ref scheme="cpc">B21C9/00</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C9/02" definition-exists="false" ipc-concordant="B21C9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Selection of compositions therefor</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C19/00" definition-exists="true" ipc-concordant="B21C19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C19/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices for straightening wire or like work combined with or specially adapted for use in connection with drawing or winding machines or apparatus</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="B21C23/00" date-revised="2021-01-01" status="published"><classification-symbol>B21C23/00</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Metal extruding</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C23/00" definition-exists="true" ipc-concordant="B21C23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Extruding metal</text></title-part><title-part><text>Impact extrusion</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/001" definition-exists="true" ipc-concordant="B21C23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>to improve the material properties, e.g. lateral extrusion</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/002" definition-exists="false" ipc-concordant="B21C23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Extruding materials of special alloys so far as the composition of the alloy requires or permits special extruding methods of sequences</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/004" definition-exists="false" ipc-concordant="B21C23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using vibratory energy</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/005" definition-exists="false" ipc-concordant="B21C23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Continuous extrusion starting from solid state material </text><reference><text><class-ref scheme="cpc">B21C23/008</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/007" definition-exists="false" ipc-concordant="B21C23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hydrostatic extrusion</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/008" definition-exists="false" ipc-concordant="B21C23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Continuous extrusion</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/01" definition-exists="false" ipc-concordant="B21C23/01" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C23/01</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>starting from material of particular form or shape, e.g. mechanically pre-treated </text><reference><text><class-ref scheme="cpc">B21C23/22</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/02" definition-exists="false" ipc-concordant="B21C23/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making uncoated products</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/03" definition-exists="false" ipc-concordant="B21C23/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by both direct and backward extrusion</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/035" definition-exists="false" ipc-concordant="B21C23/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making products of generally elongated shape</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/04" definition-exists="false" ipc-concordant="B21C23/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by direct extrusion</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/06" definition-exists="false" ipc-concordant="B21C23/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making sheets</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/08" definition-exists="false" ipc-concordant="B21C23/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making wire, bars, tubes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C23/085" definition-exists="false" ipc-concordant="B21C23/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making tubes </text><reference><text><class-ref scheme="cpc">B21C23/10</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C23/10" definition-exists="false" ipc-concordant="B21C23/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making finned tubes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C23/12" definition-exists="false" ipc-concordant="B21C23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Extruding bent tubes or rods</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/14" definition-exists="false" ipc-concordant="B21C23/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making other products</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C23/142" definition-exists="false" ipc-concordant="B21C23/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/142</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making profiles</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B21C23/145" definition-exists="false" ipc-concordant="B21C23/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/145</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Interlocking profiles</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C23/147" definition-exists="false" ipc-concordant="B21C23/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/147</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making drill blanks </text><reference><text>making twist-drills <class-ref scheme="cpc">B23P15/32</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C23/16" definition-exists="false" ipc-concordant="B21C23/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making turbo blades or propellers</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/18" definition-exists="false" ipc-concordant="B21C23/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by impact extrusion</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/183" definition-exists="false" ipc-concordant="B21C23/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by forward extrusion</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/186" definition-exists="false" ipc-concordant="B21C23/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by backward extrusion</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/20" definition-exists="false" ipc-concordant="B21C23/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by backward extrusion</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/205" definition-exists="false" ipc-concordant="B21C23/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making products of generally elongated shape</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/21" definition-exists="true" ipc-concordant="B21C23/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C23/21</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Presses specially adapted for extruding metal</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/211" definition-exists="false" ipc-concordant="B21C23/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/211</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Press driving devices</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/212" definition-exists="false" ipc-concordant="B21C23/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/212</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Details </text><reference><text><class-ref scheme="cpc">B21C23/217</class-ref>, <class-ref scheme="cpc">B21C23/218</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/214" definition-exists="false" ipc-concordant="B21C23/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/214</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for changing die or container</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/215" definition-exists="false" ipc-concordant="B21C23/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/215</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for positioning or centering press components, e.g. die or container</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/217" definition-exists="false" ipc-concordant="B21C23/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/217</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tube extrusion presses </text><reference><text><class-ref scheme="cpc">B21C23/218</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/218" definition-exists="false" ipc-concordant="B21C23/21" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/218</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Indirect extrusion presses</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/22" definition-exists="false" ipc-concordant="B21C23/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making metal-coated products</text></title-part><title-part><text>Making products from two or more metals</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C23/24" definition-exists="false" ipc-concordant="B21C23/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Covering indefinite lengths of metal or non-metal material with a metal coating</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C23/26" definition-exists="false" ipc-concordant="B21C23/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Applying metal coats to cables, e.g. to insulated electric cables</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C23/28" definition-exists="false" ipc-concordant="B21C23/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>on intermittently-operating extrusion presses</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C23/30" definition-exists="false" ipc-concordant="B21C23/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C23/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>on continuously-operating extrusion presses</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C23/32" definition-exists="false" ipc-concordant="B21C23/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C23/32</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Lubrication of metal being extruded or of dies, or the like, e.g. physical state of lubricant, location where lubricant is applied</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C25/00" definition-exists="true" ipc-concordant="B21C25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C25/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Profiling tools for metal extruding</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C25/02" definition-exists="false" ipc-concordant="B21C25/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C25/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dies</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C25/025" definition-exists="false" ipc-concordant="B21C25/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C25/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Selection of materials therefor</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C25/04" definition-exists="false" ipc-concordant="B21C25/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C25/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Mandrels</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C25/06" definition-exists="false" ipc-concordant="B21C25/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C25/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Press heads, dies, or mandrels for coating work</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C25/08" definition-exists="false" ipc-concordant="B21C25/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C25/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dies or mandrels with section variable during extruding, e.g. for making tapered work</text></title-part><title-part><text>Controlling variation</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C25/10" definition-exists="false" ipc-concordant="B21C25/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C25/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making tools by operations not covered by a single other subclass</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C26/00" definition-exists="true" ipc-concordant="B21C26/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C26/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Rams or plungers</text></title-part><title-part><text>Discs therefor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C27/00" definition-exists="true" ipc-concordant="B21C27/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C27/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Containers for metal to be extruded </text><reference><text><class-ref scheme="cpc">B21C29/02</class-ref> takes precedence</text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C27/02" definition-exists="false" ipc-concordant="B21C27/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C27/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for making coated work</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C27/04" definition-exists="false" ipc-concordant="B21C27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C27/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Venting metal-container chamber</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C29/00" definition-exists="true" ipc-concordant="B21C29/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C29/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cooling or heating work or parts of the extrusion press; </text><CPC-specific-text><text>Gas treatment of work</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C29/003" definition-exists="false" ipc-concordant="B21C29/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C29/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling or heating of work</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C29/006" definition-exists="false" ipc-concordant="B21C29/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C29/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Gas treatment of work, e.g. to prevent oxidation or to create surface effects</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C29/02" definition-exists="false" ipc-concordant="B21C29/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C29/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling or heating</text></CPC-specific-text><text> of containers for metal to be extruded</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C29/04" definition-exists="false" ipc-concordant="B21C29/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C29/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cooling or heating</text></CPC-specific-text><text> of press heads, dies or mandrels</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C31/00" definition-exists="true" ipc-concordant="B21C31/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C31/00</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Control devices, e.g. for regulating the pressing speed or temperature of metal </text><reference><text><class-ref scheme="cpc">B21C25/08</class-ref> takes precedence</text></reference></title-part><title-part><text>Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C33/00" definition-exists="true" ipc-concordant="B21C33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B21C33/00</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Feeding extrusion presses with metal to be extruded </text><CPC-specific-text><text>; Loading the dummy block</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C33/002" definition-exists="false" ipc-concordant="B21C33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C33/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Encapsulated billet </text><reference><text>manufacturing wires or fine wires <class-ref scheme="cpc">B21C37/045</class-ref>, <class-ref scheme="cpc">B21C37/047</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C33/004" definition-exists="false" ipc-concordant="B21C33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C33/004</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Composite billet</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C33/006" definition-exists="false" ipc-concordant="B21C33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C33/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Consecutive billets, e.g. billet profiles allowing air expulsion or bonding of billets</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C33/008" definition-exists="false" ipc-concordant="B21C33/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C33/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Scalping billets, e.g. for removing oxide layers prior or during extrusion</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C33/02" definition-exists="false" ipc-concordant="B21C33/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C33/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the metal being in liquid form</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C35/00" definition-exists="true" ipc-concordant="B21C35/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C35/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Removing work or waste from extruding presses</text></title-part><title-part><text>Drawing-off extruded work </text><reference><text>in connection with the extruding of bent tubes or rods <class-ref scheme="cpc">B21C23/12</class-ref></text></reference></title-part><title-part><text>Cleaning dies, ducts, containers, or mandrels</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C35/02" definition-exists="false" ipc-concordant="B21C35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C35/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Removing or drawing-off work </text><CPC-specific-text><reference><text>linear motor pulling devices <class-ref scheme="cpc">B21C1/305</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C35/023" definition-exists="false" ipc-concordant="B21C35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C35/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Work treatment directly following extrusion, e.g. further deformation or surface treatment </text><reference><text><class-ref scheme="cpc">B21C35/03</class-ref> takes precedence; gas treatment <class-ref scheme="cpc">B21C29/006</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C35/026" definition-exists="false" ipc-concordant="B21C35/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C35/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Removing sections from the extruded work, e.g. removing a strip to create an open profile</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C35/03" definition-exists="true" ipc-concordant="B21C35/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C35/03</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Straightening the work</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C35/04" definition-exists="false" ipc-concordant="B21C35/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C35/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cutting-off or removing waste</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C35/06" definition-exists="false" ipc-concordant="B21C35/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C35/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cleaning dies, ducts, containers or mandrels</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C37/00" definition-exists="true" ipc-concordant="B21C37/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C37/00</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for</text></title-part><title-part><text>Manufacture of tubes of special shape</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C37/02" definition-exists="false" ipc-concordant="B21C37/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of sheets</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C37/04" definition-exists="false" ipc-concordant="B21C37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of bars or wire </text><CPC-specific-text><reference><text>wire-like electrical connectors in or for semiconductor devices <class-ref scheme="cpc">H01L24/42</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/042" definition-exists="false" ipc-concordant="B21C37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/042</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Manufacture of coated wire or bars</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/045" definition-exists="false" ipc-concordant="B21C37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Manufacture of wire or bars with particular section or properties</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/047" definition-exists="false" ipc-concordant="B21C37/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/047</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of fine wires</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C37/06" definition-exists="true" ipc-concordant="B21C37/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C37/06</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>of tubes or metal hoses</text></title-part><title-part><text>Combined procedures for making tubes, e.g. for making multi-wall tubes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/065" definition-exists="false" ipc-concordant="B21C37/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>starting from a specific blank, e.g. tailored blank</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/08" definition-exists="true" ipc-concordant="B21C37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C37/08</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Making tubes with welded or soldered seams </text><CPC-specific-text><reference><text>with helically arranged seams <class-ref scheme="cpc">B21C37/122</class-ref></text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/0803" definition-exists="false" ipc-concordant="B21C37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/0803</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tubes having a special shape, e.g. polygonal tubes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/0807" definition-exists="false" ipc-concordant="B21C37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/0807</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/0811" definition-exists="false" ipc-concordant="B21C37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/0811</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>removing or treating the weld bead</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/0815" definition-exists="true" ipc-concordant="B21C37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C37/0815</classification-symbol><class-title date-revised="2021-01-01"><title-part><CPC-specific-text><text>without continuous longitudinal movement of the sheet during the bending operation</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/0818" definition-exists="false" ipc-concordant="B21C37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/0818</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Manufacture of tubes by drawing of strip material through dies</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/0822" definition-exists="false" ipc-concordant="B21C37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/0822</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Guiding or aligning the edges of the bent sheet</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/0826" definition-exists="false" ipc-concordant="B21C37/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/0826</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Preparing the edges of the metal sheet with the aim of having some effect on the weld</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/083" definition-exists="false" ipc-concordant="B21C37/083" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/083</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Supply, or operations combined with supply, of strip material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/087" definition-exists="false" ipc-concordant="B21C37/087" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/087</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>using rods or strips of soldering material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/09" definition-exists="false" ipc-concordant="B21C37/09" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B21C37/09</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>of coated strip material </text><CPC-specific-text><text>; Making multi-wall tubes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/10" definition-exists="false" ipc-concordant="B21C37/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making tubes with riveted seams </text><CPC-specific-text><text>or with non-welded and non-soldered seams</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/101" definition-exists="false" ipc-concordant="B21C37/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making of the seams</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/102" definition-exists="false" ipc-concordant="B21C37/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of coated strip material (making multi-wall tubes)</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/104" definition-exists="false" ipc-concordant="B21C37/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tubes having a special shape, e.g. polygonal tubes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/105" definition-exists="false" ipc-concordant="B21C37/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Supply, or operations combined with supply, of strip material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/107" definition-exists="false" ipc-concordant="B21C37/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>B21C37/107</classification-symbol><class-title date-revised="2016-08-01"><title-part><CPC-specific-text><text>Tube treating or manipulating combined with or specially adapted for use in connection with tube-making machines, e.g. drawing-off devices, cutting-off</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/108" definition-exists="true" ipc-concordant="B21C37/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C37/108</classification-symbol><class-title date-revised="2021-01-01"><title-part><CPC-specific-text><text>without continuous longitudinal movement of the sheet during the bending operation</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/12" definition-exists="false" ipc-concordant="B21C37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making tubes or metal hoses with helically arranged seams</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/121" definition-exists="false" ipc-concordant="B21C37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/121</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with non-welded and non-soldered seams</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/122" definition-exists="true" ipc-concordant="B21C37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C37/122</classification-symbol><class-title date-revised="2021-01-01"><title-part><CPC-specific-text><text>with welded or soldered seams</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/123" definition-exists="false" ipc-concordant="B21C37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/123</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of coated strip material; Making multi-wall tubes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/124" definition-exists="false" ipc-concordant="B21C37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tubes having a special shape, e.g. with corrugated wall, flexible tubes</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/125" definition-exists="false" ipc-concordant="B21C37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>curved section, e.g. elbow</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/126" definition-exists="false" ipc-concordant="B21C37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Supply, or operations combined with supply, of strip material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/127" definition-exists="false" ipc-concordant="B21C37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/127</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tube treating or manipulating combined with or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/128" definition-exists="false" ipc-concordant="B21C37/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Control or regulating devices</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/14" definition-exists="false" ipc-concordant="B21C37/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making tubes from double flat material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/15" definition-exists="false" ipc-concordant="B21C37/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/15</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making tubes of special shape</text></title-part><title-part><text>Making tube fittings </text><CPC-specific-text><reference><text><class-ref scheme="cpc">B21C37/0803</class-ref>, <class-ref scheme="cpc">B21C37/104</class-ref>, <class-ref scheme="cpc">B21C37/124</class-ref>, take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/151" definition-exists="false" ipc-concordant="B21C37/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/151</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making tubes with multiple passages</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/152" definition-exists="false" ipc-concordant="B21C37/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/152</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making rifle and gunbarrels</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/153" definition-exists="false" ipc-concordant="B21C37/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/153</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making tubes with inner- and/or outer guides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/154" definition-exists="false" ipc-concordant="B21C37/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/154</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making multi-wall tubes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/155" definition-exists="false" ipc-concordant="B21C37/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-11-01" status="published"><classification-symbol>B21C37/155</classification-symbol><class-title date-revised="2016-11-01"><title-part><CPC-specific-text><text>Making tubes with non circular section </text><reference><text><class-ref scheme="cpc">B21C37/151</class-ref>, <class-ref scheme="cpc">B21C37/154</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/156" definition-exists="false" ipc-concordant="B21C37/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/156</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making tubes with wall irregularities </text><reference><text><class-ref scheme="cpc">B21C37/20</class-ref>, <class-ref scheme="cpc">B21C37/22</class-ref> take precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/157" definition-exists="false" ipc-concordant="B21C37/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/157</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Perforations</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/158" definition-exists="false" ipc-concordant="B21C37/15" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/158</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Protrusions, e.g. dimples</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/16" definition-exists="false" ipc-concordant="B21C37/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making tubes with varying diameter in longitudinal direction</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/18" definition-exists="false" ipc-concordant="B21C37/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>conical tubes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B21C37/185" definition-exists="false" ipc-concordant="B21C37/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>starting from sheet material</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/20" definition-exists="false" ipc-concordant="B21C37/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B21C37/20</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies </text><CPC-specific-text><text>; Making tubes with angled walls, ribbed tubes and tubes with decorated walls</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/202" definition-exists="false" ipc-concordant="B21C37/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/202</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with guides parallel to the tube axis</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/205" definition-exists="false" ipc-concordant="B21C37/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with annular guides</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/207" definition-exists="false" ipc-concordant="B21C37/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/207</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with helical guides</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/22" definition-exists="true" ipc-concordant="B21C37/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C37/22</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Making finned or ribbed tubes by fixing strip or like material to tubes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/225" definition-exists="false" ipc-concordant="B21C37/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>longitudinally-ribbed tubes</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/24" definition-exists="false" ipc-concordant="B21C37/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>annularly-ribbed tubes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/26" definition-exists="false" ipc-concordant="B21C37/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>helically-ribbed tubes</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C37/28" definition-exists="false" ipc-concordant="B21C37/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making tube fittings for connecting pipes, e.g. U-pieces</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/283" definition-exists="false" ipc-concordant="B21C37/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/283</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making U-pieces </text><reference><text><class-ref scheme="cpc">B21C37/286</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/286" definition-exists="false" ipc-concordant="B21C37/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>starting from sheet material</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C37/29" definition-exists="false" ipc-concordant="B21C37/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/29</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making branched pieces, e.g. T-pieces</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B21C37/292" definition-exists="false" ipc-concordant="B21C37/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/292</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B21C37/294" definition-exists="false" ipc-concordant="B21C37/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/294</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Forming collars by compressing a fluid or a yieldable or resilient mass in the tube</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B21C37/296" definition-exists="false" ipc-concordant="B21C37/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/296</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making branched pieces starting from strip material; Making branched tubes by securing a secondary tube in an opening in the undeformed wall of a principal tube</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B21C37/298" definition-exists="false" ipc-concordant="B21C37/29" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/298</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Forming collars by flow-drilling </text><reference><text>flow drilling <class-ref scheme="cpc">B21J5/066</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C37/30" definition-exists="false" ipc-concordant="B21C37/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C37/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Finishing tubes, e.g. sizing, burnishing</text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C43/00" definition-exists="true" ipc-concordant="B21C43/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C43/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices for cleaning metal products combined with or specially adapted for use with machines or apparatus provided for in this subclass</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C43/02" definition-exists="false" ipc-concordant="B21C43/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C43/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>combined with or specially adapted for use in connection with drawing or winding machines or apparatus</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C43/04" definition-exists="false" ipc-concordant="B21C43/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C43/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices for de-scaling wire or like flexible work</text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="B21C45/00" date-revised="2013-01-01" status="published"><classification-symbol>B21C45/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Auxiliary operation used in connection with metal working without essentially removing material</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C45/00" definition-exists="true" ipc-concordant="B21C45/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-08-01" status="published"><classification-symbol>B21C45/00</classification-symbol><class-title date-revised="2016-08-01"><title-part><text>Separating mandrels from work or <u>vice versa</u></text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C47/00" definition-exists="true" ipc-concordant="B21C47/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C47/00</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only </text><reference><text>coiling wire into particular forms <class-ref scheme="cpc">B21F3/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C47/003" definition-exists="false" ipc-concordant="B21C47/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Regulation of tension or speed; Braking</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C47/006" definition-exists="false" ipc-concordant="B21C47/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>winding-up or winding-off several parallel metal bands</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C47/02" definition-exists="false" ipc-concordant="B21C47/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Winding-up or coiling</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/04" definition-exists="true" ipc-concordant="B21C47/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C47/04</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>on or in reels or drums, without using a moving guide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/045" definition-exists="false" ipc-concordant="B21C47/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in rotating drums</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/06" definition-exists="false" ipc-concordant="B21C47/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with loaded rollers, bolts, or equivalent means holding the material on the reel or drum</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C47/063" definition-exists="false" ipc-concordant="B21C47/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with pressure rollers only</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C47/066" definition-exists="false" ipc-concordant="B21C47/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with belt wrappers only</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/08" definition-exists="false" ipc-concordant="B21C47/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>without making use of a reel or drum, the first turn being formed by a stationary guide</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/10" definition-exists="false" ipc-concordant="B21C47/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of a moving guide</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/12" definition-exists="false" ipc-concordant="B21C47/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the guide moving parallel to the axis of the coil </text><reference><text><class-ref scheme="cpc">B21C47/14</class-ref> takes precedence</text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/14" definition-exists="false" ipc-concordant="B21C47/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by means of a rotating guide, e.g. laying the material around a stationary reel or drum</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C47/143" definition-exists="false" ipc-concordant="B21C47/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the guide being a tube</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B21C47/146" definition-exists="false" ipc-concordant="B21C47/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Controlling or influencing the laying pattern of the coils</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C47/16" definition-exists="false" ipc-concordant="B21C47/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Unwinding or uncoiling</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/18" definition-exists="false" ipc-concordant="B21C47/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from reels or drums</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/20" definition-exists="false" ipc-concordant="B21C47/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the unreeled material moving transversely to the tangent line of the drum, e.g. axially, radially</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/22" definition-exists="false" ipc-concordant="B21C47/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Unwinding coils without reels or drums</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C47/24" definition-exists="false" ipc-concordant="B21C47/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Transferring coils to or from winding apparatus or to or from operative position therein</text></title-part><title-part><text>Preventing uncoiling during transfer</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/242" definition-exists="false" ipc-concordant="B21C47/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/242</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for swinging the coil from horizontal to vertical, or <u>vice versa</u></text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/245" definition-exists="false" ipc-concordant="B21C47/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/245</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for the replacement of full reels by empty reels or <u>vice versa</u>, without considerable loss of time</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/247" definition-exists="false" ipc-concordant="B21C47/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/247</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Joining wire or band ends</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C47/26" definition-exists="false" ipc-concordant="B21C47/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special arrangements with regard to simultaneous or subsequent treatment of the material</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/262" definition-exists="false" ipc-concordant="B21C47/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/262</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Treatment of a wire, while in the form of overlapping non-concentric rings</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/265" definition-exists="false" ipc-concordant="B21C47/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/265</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>&quot;helicofil&quot; systems</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/267" definition-exists="false" ipc-concordant="B21C47/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/267</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Scrap treatment</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C47/28" definition-exists="true" ipc-concordant="B21C47/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2021-01-01" status="published"><classification-symbol>B21C47/28</classification-symbol><class-title date-revised="2021-01-01"><title-part><text>Drums or other coil-holders</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/30" definition-exists="false" ipc-concordant="B21C47/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>expansible or contractible</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C47/32" definition-exists="false" ipc-concordant="B21C47/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tongs or gripping means specially adapted for reeling operations</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/323" definition-exists="false" ipc-concordant="B21C47/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/323</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Slits or pinces on the cylindrical wall of a reel or bobbin, adapted to grip the end of the material being wound</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/326" definition-exists="false" ipc-concordant="B21C47/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/326</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Devices for pressing the end of the material being wound against the cylindrical wall of the reel or bobbin</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C47/34" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Feeding or guiding devices not specially adapted to a particular type of apparatus</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/3408" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3408</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for monitoring the lateral position of the material</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/3416" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3416</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with lateral edge contact</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/3425" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3425</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>without lateral edge contact</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/3433" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3433</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for guiding the leading end of the material, e.g. from or to a coiler</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/3441" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3441</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Diverting the leading end, e.g. from main flow to a coiling device</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/345" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/345</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for monitoring the tension or advance of the material</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/3458" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3458</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Endlessly revolving chain systems </text><reference><text>metal drawing <class-ref scheme="cpc">B21C1/30</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21C47/3466" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3466</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by using specific means</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/3475" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3475</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Fluid pressure or vacuum</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/3483" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3483</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Magnetic field</text></CPC-specific-text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21C47/3491" definition-exists="false" ipc-concordant="B21C47/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C47/3491</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Brushes</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C49/00" definition-exists="true" ipc-concordant="B21C49/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C49/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Devices for temporarily accumulating material</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C51/00" definition-exists="true" ipc-concordant="B21C51/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>B21C51/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses <class-ref scheme="cpc">B21B</class-ref>&#160;-&#160;<class-ref scheme="cpc">B21F</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21C51/005" definition-exists="false" ipc-concordant="B21C51/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C51/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Marking devices</text></CPC-specific-text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21C99/00" definition-exists="true" ipc-concordant="B21C99/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21C99/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Subject matter not provided for in other groups of this subclass</text></title-part></class-title></classification-item></classification-item></classification-item></class-scheme>