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ZSI_Reconnect_China/PATSTAT/CPC_data/CPCSchemeXML202302/cpc-scheme-B21K.xml

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<?xml version="1.0" encoding="UTF-8"?>
<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="B21K" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>B21K</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS </text><reference><text>making particular articles by working sheet metal without essentially removing material <class-ref scheme="cpc">B21D</class-ref>; processing wire <class-ref scheme="cpc">B21F</class-ref>; making pins, needles or nails <class-ref scheme="cpc">B21G</class-ref>; making particular articles by rolling <class-ref scheme="cpc">B21H</class-ref>; forging machines, pressing machines, hammering machines, in general <class-ref scheme="cpc">B21J</class-ref>; making chains <class-ref scheme="cpc">B21L</class-ref>; plating <class-ref scheme="cpc">B23K</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass includes only forging, pressing, or hammering operations which are specially adapted for use in the manufacture of particular objects and which, sor far as the invention is concerned, are not combined with any different metal-working operation unless the latter is a subsidiary operation performed in the same machine. </note-paragraph></note><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="B21K1/00" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making particular articles by forging, pressing, or hammering</text></title-part><title-part><text>Equipment therefor</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K1/00" definition-exists="true" ipc-concordant="B21K1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making machine elements</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/02" definition-exists="true" ipc-concordant="B21K1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>balls, rolls, or rollers, e.g. for bearings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/025" definition-exists="true" ipc-concordant="B21K1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of bullets</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="B21K1/04" definition-exists="true" ipc-concordant="B21K1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>ball-races </text><CPC-specific-text><text>or sliding bearing races</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="B21K1/05" definition-exists="true" ipc-concordant="B21K1/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>cages for bearings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/06" definition-exists="true" ipc-concordant="B21K1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>axles or shafts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/063" definition-exists="false" ipc-concordant="B21K1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>hollow </text><reference><text>hollow racks <class-ref scheme="cpc">B21K1/768</class-ref></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="B21K1/066" definition-exists="false" ipc-concordant="B21K1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>splined</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="B21K1/08" definition-exists="true" ipc-concordant="B21K1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>crankshafts</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/10" definition-exists="true" ipc-concordant="B21K1/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of cylindrical form</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/12" definition-exists="true" ipc-concordant="B21K1/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of specially-shaped cross-section</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/14" definition-exists="true" ipc-concordant="B21K1/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>fittings</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/16" definition-exists="true" ipc-concordant="B21K1/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>parts of pipe or hose couplings</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/18" definition-exists="true" ipc-concordant="B21K1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>pistons or plungers</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/185" definition-exists="false" ipc-concordant="B21K1/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/185</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with cooling channels</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="B21K1/20" definition-exists="true" ipc-concordant="B21K1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>valve parts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/205" definition-exists="true" ipc-concordant="B21K1/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>rocker arms</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="B21K1/22" definition-exists="true" ipc-concordant="B21K1/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>poppet valves, e.g. for internal-combustion engines</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/24" definition-exists="true" ipc-concordant="B21K1/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>valve bodies</text></title-part><title-part><text>valve seats</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/26" definition-exists="true" ipc-concordant="B21K1/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>housings or supporting parts, e.g. axle housings, engine mountings</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/28" definition-exists="true" ipc-concordant="B21K1/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>wheels</text></title-part><title-part><text>discs</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/30" definition-exists="true" ipc-concordant="B21K1/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/30</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with gear-teeth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21K1/305" definition-exists="false" ipc-concordant="B21K1/30" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/305</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>helical</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="B21K1/32" definition-exists="true" ipc-concordant="B21K1/32" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/32</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>discs, e.g. disc wheels</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/34" definition-exists="true" ipc-concordant="B21K1/34" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/34</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>wheels with spokes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/36" definition-exists="true" ipc-concordant="B21K1/36" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/36</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with blades</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/38" definition-exists="true" ipc-concordant="B21K1/38" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/38</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>rims</text></title-part><title-part><text>tyres</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/40" definition-exists="true" ipc-concordant="B21K1/40" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/40</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>hubs</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/42" definition-exists="true" ipc-concordant="B21K1/42" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/42</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>pulleys, e.g. cable pulleys</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/44" definition-exists="true" ipc-concordant="B21K1/44" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/44</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>bolts, studs, or the like </text><reference><text>making screw-thread <class-ref scheme="cpc">B21K1/56</class-ref>; making U-bolts <class-ref scheme="cpc">B21K1/74</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/46" definition-exists="true" ipc-concordant="B21K1/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/46</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with heads</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21K1/463" definition-exists="true" ipc-concordant="B21K1/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/463</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with recessed heads</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="B21K1/466" definition-exists="true" ipc-concordant="B21K1/46" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/466</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Heading machines with an oscillating die block</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="B21K1/48" definition-exists="true" ipc-concordant="B21K1/48" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/48</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Machines working with hammers, e.g. beating in a radial direction, for forming heads</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21K1/50" definition-exists="true" ipc-concordant="B21K1/50" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/50</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Trimming or shearing formed heads, e.g. working with dies</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/52" definition-exists="true" ipc-concordant="B21K1/52" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/52</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>double-ended, e.g. with heads on both ends </text><reference><text>forming heads <class-ref scheme="cpc">B21K1/46</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/54" definition-exists="true" ipc-concordant="B21K1/54" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/54</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with grooves or notches</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/56" definition-exists="true" ipc-concordant="B21K1/56" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/56</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>screw-threaded elements</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/58" definition-exists="true" ipc-concordant="B21K1/58" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/58</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>rivets</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/60" definition-exists="true" ipc-concordant="B21K1/60" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/60</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>hollow or semi-hollow rivets</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/62" definition-exists="true" ipc-concordant="B21K1/62" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/62</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>special rivets, e.g. with electrical contacts</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/64" definition-exists="true" ipc-concordant="B21K1/64" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/64</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>nuts </text><reference><text>making screw-thread <class-ref scheme="cpc">B21K1/56</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/66" definition-exists="true" ipc-concordant="B21K1/66" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2017-08-01" status="published"><classification-symbol>B21K1/66</classification-symbol><class-title date-revised="2017-08-01"><title-part><text>from strip bars</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/68" definition-exists="true" ipc-concordant="B21K1/68" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/68</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>from round or profiled bars</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/70" definition-exists="true" ipc-concordant="B21K1/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/70</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>of special shape, e.g. self-locking nuts, wing nuts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21K1/701" definition-exists="true" ipc-concordant="B21K1/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/701</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Weld nuts</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="B21K1/702" definition-exists="true" ipc-concordant="B21K1/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/702</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Clinch nuts</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="B21K1/704" definition-exists="true" ipc-concordant="B21K1/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/704</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Cap nuts</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="B21K1/705" definition-exists="true" ipc-concordant="B21K1/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/705</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Castellated nuts</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="B21K1/707" definition-exists="true" ipc-concordant="B21K1/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/707</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Self-locking nuts</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="B21K1/708" definition-exists="true" ipc-concordant="B21K1/70" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/708</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>wing nuts</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="B21K1/72" definition-exists="true" ipc-concordant="B21K1/72" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/72</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>hooks, e.g. crane hooks, railway track spikes </text><reference><text>making nails in general <class-ref scheme="cpc">B21G</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/74" definition-exists="true" ipc-concordant="B21K1/74" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/74</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>forked members or members with two or more limbs, e.g. U-bolts, anchors</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K1/76" definition-exists="true" ipc-concordant="B21K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/76</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>elements not mentioned in one of the preceding groups</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K1/761" definition-exists="true" ipc-concordant="B21K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/761</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>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="B21K1/762" definition-exists="true" ipc-concordant="B21K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/762</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Coupling members for conveying mechanical motion, e.g. universal joints</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21K1/763" definition-exists="false" ipc-concordant="B21K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/763</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Inner elements of coupling members</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="B21K1/765" definition-exists="false" ipc-concordant="B21K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/765</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Outer elements of coupling members</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="B21K1/766" definition-exists="true" ipc-concordant="B21K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/766</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Connecting rods</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="B21K1/767" definition-exists="true" ipc-concordant="B21K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/767</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Toothed racks</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B21K1/768" definition-exists="false" ipc-concordant="B21K1/76" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K1/768</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>hollow</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="B21K3/00" definition-exists="true" ipc-concordant="B21K3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making engine or like machine parts not covered by sub-groups of <class-ref scheme="cpc">B21K1/00</class-ref></text></title-part><title-part><text>Making propellers or the like</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K3/02" definition-exists="true" ipc-concordant="B21K3/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K3/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>cylinder heads</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K3/04" definition-exists="true" ipc-concordant="B21K3/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K3/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>blades, e.g. for turbines</text></title-part><title-part><text>Upsetting of blade roots</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K5/00" definition-exists="true" ipc-concordant="B21K5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making tools or tool parts, e.g. pliers</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K5/02" definition-exists="true" ipc-concordant="B21K5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>drilling-tools or other for making or working on holes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K5/04" definition-exists="true" ipc-concordant="B21K5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>twisting-tools, e.g. drills, reamers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K5/06" definition-exists="true" ipc-concordant="B21K5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Dressing, e.g. sharpening rock drills</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K5/08" definition-exists="true" ipc-concordant="B21K5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>drifting tools</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K5/10" definition-exists="true" ipc-concordant="B21K5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Forming drill-bit shanks</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K5/12" definition-exists="true" ipc-concordant="B21K5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>other cutting tools </text><reference><text>cutlery wares <class-ref scheme="cpc">B21K11/00</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K5/14" definition-exists="true" ipc-concordant="B21K5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>hand hammers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K5/16" definition-exists="true" ipc-concordant="B21K5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>tools for turning nuts</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K5/18" definition-exists="true" ipc-concordant="B21K5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>handles or parts therefor</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K5/20" definition-exists="true" ipc-concordant="B21K5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K5/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making working faces of dies, either recessed or outstanding</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K7/00" definition-exists="true" ipc-concordant="B21K7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making railway appurtenances</text></title-part><title-part><text>Making vehicle parts</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K7/02" definition-exists="true" ipc-concordant="B21K7/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K7/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>parts for permanent way </text><reference><text>spikes <class-ref scheme="cpc">B21K1/72</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K7/04" definition-exists="true" ipc-concordant="B21K7/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K7/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>switch tongues</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K7/06" definition-exists="true" ipc-concordant="B21K7/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K7/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>sleepers</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K7/08" definition-exists="true" ipc-concordant="B21K7/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K7/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>base plates for rails, e.g. chairs</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K7/10" definition-exists="true" ipc-concordant="B21K7/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K7/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>rails joints</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K7/12" definition-exists="true" ipc-concordant="B21K7/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K7/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>parts for locomotives or vehicles, e.g. frames, underframes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K7/14" definition-exists="true" ipc-concordant="B21K7/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K7/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>brake rigging or brake parts</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="B21K9/00" definition-exists="true" ipc-concordant="B21K9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Reconditioning railroad accessories, e.g. rails</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K11/00" definition-exists="true" ipc-concordant="B21K11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making cutlery wares</text></title-part><title-part><text>Making garden tools or the like</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K11/02" definition-exists="true" ipc-concordant="B21K11/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K11/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>knives</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K11/04" definition-exists="true" ipc-concordant="B21K11/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K11/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>spoons</text></title-part><title-part><text>table forks</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K11/06" definition-exists="true" ipc-concordant="B21K11/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K11/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>scissors</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K11/08" definition-exists="true" ipc-concordant="B21K11/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K11/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>sickles</text></title-part><title-part><text>scythes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K11/10" definition-exists="true" ipc-concordant="B21K11/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K11/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>axes</text></title-part><title-part><text>picks</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K11/12" definition-exists="true" ipc-concordant="B21K11/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K11/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>spades</text></title-part><title-part><text>shovels</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K11/14" definition-exists="true" ipc-concordant="B21K11/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K11/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>rakes</text></title-part><title-part><text>garden forks</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K13/00" definition-exists="true" ipc-concordant="B21K13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K13/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making locksmiths&apos; goods, e.g. handles for cases</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K13/02" definition-exists="true" ipc-concordant="B21K13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>hinges</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K15/00" definition-exists="true" ipc-concordant="B21K15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K15/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making blacksmiths&apos; goods</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K15/02" definition-exists="true" ipc-concordant="B21K15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K15/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>horseshoes</text></title-part><title-part><text>appurtenances therefor</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K15/04" definition-exists="true" ipc-concordant="B21K15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>caulks</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K15/06" definition-exists="true" ipc-concordant="B21K15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>metal attachments for footwear, e.g. wearresisting plates</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K17/00" definition-exists="true" ipc-concordant="B21K17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K17/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making sport articles, e.g. skates</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K19/00" definition-exists="true" ipc-concordant="B21K19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K19/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making articles for agricultural machinery</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K19/02" definition-exists="true" ipc-concordant="B21K19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K19/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>plough blades</text></title-part><title-part><text>ploughshares</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K21/00" definition-exists="true" ipc-concordant="B21K21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K21/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making hollow articles not covered by a single preceding sub-group </text><reference><text>essentially from sheet-metal or uniform thin-walled tubes <class-ref scheme="cpc">B21D</class-ref>, e.g. <class-ref scheme="cpc">B21D41/00</class-ref>, <class-ref scheme="cpc">B21D51/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K21/02" definition-exists="true" ipc-concordant="B21K21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K21/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Producing blanks in the shape of discs or cups as semifinished articles for making hollow articles, e.g. to be deep-drawn or extruded</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K21/04" definition-exists="true" ipc-concordant="B21K21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K21/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaping thin-walled hollow articles, e.g. cartridges</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K21/06" definition-exists="true" ipc-concordant="B21K21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K21/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaping thick-walled hollow articles, e.g. projectiles</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K21/08" definition-exists="true" ipc-concordant="B21K21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K21/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K21/10" definition-exists="true" ipc-concordant="B21K21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K21/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>cone-shaped or bell-shaped articles, e.g. insulator caps</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K21/12" definition-exists="true" ipc-concordant="B21K21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K21/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaping end portions of hollow articles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K21/14" definition-exists="true" ipc-concordant="B21K21/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K21/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>closed or substantially-closed ends, e.g. cartridge bottoms</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K21/16" definition-exists="true" ipc-concordant="B21K21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K21/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Remodelling hollow bodies with respect to the shape of the cross-section </text><reference><text>remodelling end portions only <class-ref scheme="cpc">B21K21/12</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K23/00" definition-exists="true" ipc-concordant="B21K23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K23/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making other articles</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K23/02" definition-exists="true" ipc-concordant="B21K23/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K23/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>members of endless tracks, e.g. track guides, shoes </text><reference><text>making from sheet-metal <class-ref scheme="cpc">B21D</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K23/04" definition-exists="true" ipc-concordant="B21K23/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K23/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>flanged articles </text><reference><text><class-ref scheme="cpc">B21K1/28</class-ref> takes precedence; flanging tubes <class-ref scheme="cpc">B21D</class-ref></text></reference></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K25/00" definition-exists="true" ipc-concordant="B21K25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K25/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components </text><reference><text>uniting by interference- or press-fitting <class-ref scheme="cpc">B23P11/02</class-ref>, <class-ref scheme="cpc">B21K19/02</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K25/005" definition-exists="true" ipc-concordant="B21K25/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K25/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by friction heat forging </text><reference><text><class-ref scheme="cpc">B21J15/027</class-ref> takes precedence; friction heat forging <u>per se</u> <class-ref scheme="cpc">B21J5/063</class-ref></text></reference></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="true" level="6" additional-only="false" sort-key="B21K27/00" date-revised="2013-01-01" status="published"><classification-symbol>B21K27/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Accessories</text></title-part><title-part><text>Auxiliary devices</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K27/00" definition-exists="true" ipc-concordant="B21K27/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K27/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Handling devices, e.g. for feeding, aligning, discharging, Cutting-off means</text></title-part><title-part><text>Arrangement thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K27/02" definition-exists="true" ipc-concordant="B21K27/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K27/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Feeding devices for rods, wire, or strips</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B21K27/04" definition-exists="true" ipc-concordant="B21K27/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K27/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>allowing successive working steps</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B21K27/06" definition-exists="true" ipc-concordant="B21K27/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K27/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Cutting-off means</text></title-part><title-part><text>Arrangements thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K29/00" definition-exists="true" ipc-concordant="B21K29/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K29/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for heating or cooling during processing </text><reference><text>for preparing metal stock to be forged or pressed <class-ref scheme="cpc">B21J1/06</class-ref>; heating equipment <u>per se</u>, <u>see</u> the appropriate classes, e.g. <class-ref scheme="cpc">H05B</class-ref></text></reference></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B21K31/00" definition-exists="true" ipc-concordant="B21K31/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B21K31/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Control devices specially adapted for positioning tool carriers</text></title-part></class-title></classification-item></classification-item></classification-item></class-scheme>