blabla/PATSTAT/CPC_data/CPCSchemeXML202302/cpc-scheme-B23F.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="B23F" definition-exists="true" date-revised="2018-08-01" status="published"><classification-symbol>B23F</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>MAKING GEARS OR TOOTHED RACKS </text><reference><text>by stamping <class-ref scheme="cpc">B21D</class-ref>; by rolling <class-ref scheme="cpc">B21H</class-ref>; by forging or pressing <class-ref scheme="cpc">B21K</class-ref>; by casting <class-ref scheme="cpc">B22</class-ref>; arrangements for copying or controlling <class-ref scheme="cpc">B23Q</class-ref>; machines or devices for grinding or polishing, in general <class-ref scheme="cpc">B24B</class-ref></text></reference></title-part></class-title><notes-and-warnings date-revised="2013-01-01"><note type="note"><note-paragraph>This subclass <u>covers:</u> <subnote type="bullet"><note-paragraph>the use of methods or apparatus specially designed to produce accurately the shapes of gear teeth which are essential for proper intermeshing of toothed gearing elements to ensure the required relative motions;</note-paragraph><note-paragraph>the use of similar methods or apparatus in the production of other articles of toothed or like form, e.g. dog clutches, splined shafts, milling cutters.</note-paragraph></subnote></note-paragraph><note-paragraph>This subclass <u>does not cover</u> the production of such other articles of toothed or like form using methods or apparatus other than those mentioned under Note (1) above.</note-paragraph><note-paragraph>In this subclass, the following terms or expressions are used with the meanings indicated:<subnote type="bullet"><note-paragraph>&quot;gear teeth&quot; covers the teeth or lobes of other accurately-intermeshing members having relative movement of a similar kind, such as rotors of rotary pumps and blowers;</note-paragraph><note-paragraph>&quot;profile&quot; may include the outline of both faces or only one face of a tooth, or the opposing faces of adjacent teeth;</note-paragraph><note-paragraph>&quot;straight&quot; means that a tooth as a whole (ignoring any curvature of the tooth-face alone, e.g. crowning) is straight in the direction of its length, for example as seen in the direction of a radius of a spur wheel. It accordingly includes the teeth of helical gears and of the normal type of bevel gear;</note-paragraph><note-paragraph>&quot;broach-milling&quot; means milling with a rotary cutter having a number of teeth of progressively increasing depth or width.</note-paragraph></subnote></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="B23F1/00" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/00</classification-symbol>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23F1/00" definition-exists="true" ipc-concordant="B23F1/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making gear teeth by tools of which the profile matches the profile of the required surface </text><reference><text>special adaptations for making curved teeth <class-ref scheme="cpc">B23F9/00</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F1/02" definition-exists="true" ipc-concordant="B23F1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by grinding</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F1/023" definition-exists="true" ipc-concordant="B23F1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tool being a grinding worm</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="B23F1/026" definition-exists="false" ipc-concordant="B23F1/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with plural tools</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="B23F1/04" definition-exists="true" ipc-concordant="B23F1/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by planing or slotting</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F1/06" definition-exists="true" ipc-concordant="B23F1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by milling</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F1/065" definition-exists="false" ipc-concordant="B23F1/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with plural tools</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="B23F1/08" definition-exists="false" ipc-concordant="B23F1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by broaching</text></title-part><title-part><text>by broach-milling</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F1/083" definition-exists="false" ipc-concordant="B23F1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by broach-milling</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="B23F1/086" definition-exists="false" ipc-concordant="B23F1/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F1/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pot broaching</text></CPC-specific-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="B23F3/00" definition-exists="true" ipc-concordant="B23F3/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F3/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making gear teeth involving copying operations controlled by templates having a profile which matches that of the required tooth face or part thereof or a copy thereof to a different scale </text><reference><text>copying systems or devices <u>per se</u> <class-ref scheme="cpc">B23Q35/00</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="B23F5/00" definition-exists="true" ipc-concordant="B23F5/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F5/02" definition-exists="false" ipc-concordant="B23F5/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by grinding</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F5/04" definition-exists="true" ipc-concordant="B23F5/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool being a grinding worm</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F5/06" definition-exists="false" ipc-concordant="B23F5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool being a grinding disc with a plane front surface</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F5/065" definition-exists="false" ipc-concordant="B23F5/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/065</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and the grinding disc axis varying angularly with respect to the workpiece axis</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="B23F5/08" definition-exists="false" ipc-concordant="B23F5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool being a grinding disc having the same profile as the tooth or teeth of a rack</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F5/085" definition-exists="false" ipc-concordant="B23F5/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>and the grinding disc axis varying angularly with respect to the workpiece axis</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="B23F5/10" definition-exists="false" ipc-concordant="B23F5/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool being a grinding disc having the same profile as the tooth or teeth of a crown or bevel wheel</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F5/12" definition-exists="false" ipc-concordant="B23F5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by planing or slotting</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F5/125" definition-exists="false" ipc-concordant="B23F5/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two single-tooth tools mounted on reciprocating slides</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="B23F5/14" definition-exists="false" ipc-concordant="B23F5/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool having the same profile as a tooth or teeth of a rack</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F5/16" definition-exists="false" ipc-concordant="B23F5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool having a shape similar to that of a spur wheel or part thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F5/163" definition-exists="true" ipc-concordant="B23F5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tool and workpiece being in crossed axis arrangement, e.g. skiving, i.e. &quot;Waelzschaelen&quot;</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="B23F5/166" definition-exists="false" ipc-concordant="B23F5/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with plural tools</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="B23F5/18" definition-exists="false" ipc-concordant="B23F5/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool having the same profile as a tooth of a crown wheel</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F5/20" definition-exists="false" ipc-concordant="B23F5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by milling</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F5/202" definition-exists="false" ipc-concordant="B23F5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/202</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tool having a shape similar to that of a gear or part thereof, with cutting edges situated on the tooth contour lines </text><reference><text>tools therefor <class-ref scheme="cpc">B23F21/122</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="B23F5/205" definition-exists="true" ipc-concordant="B23F5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/205</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with plural tools</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F5/207" definition-exists="true" ipc-concordant="B23F5/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/207</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tools being interlocked</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="B23F5/22" definition-exists="true" ipc-concordant="B23F5/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool being a hob for making spur gears</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F5/24" definition-exists="true" ipc-concordant="B23F5/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool being a hob for making bevel gears</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F5/26" definition-exists="false" ipc-concordant="B23F5/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool having the same profile as a tooth or teeth of a rack, for making spur gears</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F5/27" definition-exists="false" ipc-concordant="B23F5/27" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/27</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>the tool having the same profile as a tooth or teeth of a crown or bevel wheel</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F5/28" definition-exists="false" ipc-concordant="B23F5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by broaching</text></title-part><title-part><text>by broach-milling</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F5/285" definition-exists="false" ipc-concordant="B23F5/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F5/285</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>broaching with working tools mounted on an endless chain or belt</text></CPC-specific-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="B23F7/00" definition-exists="true" ipc-concordant="B23F7/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F7/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making herringbone gear teeth</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23F9/00" definition-exists="true" ipc-concordant="B23F9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making gears having teeth curved in their longitudinal direction</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F9/003" definition-exists="false" ipc-concordant="B23F9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by broaching</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F9/006" definition-exists="false" ipc-concordant="B23F9/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>broaching with working tools mounted on an endless chain or belt</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="B23F9/02" definition-exists="false" ipc-concordant="B23F9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by grinding</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F9/025" definition-exists="true" ipc-concordant="B23F9/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a face-mill-type, i.e. cup-shaped, grinding wheel</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="B23F9/04" definition-exists="false" ipc-concordant="B23F9/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by planing or slotting with reciprocating cutting tools</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F9/06" definition-exists="true" ipc-concordant="B23F9/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a shape similar to a spur-wheel or part thereof</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F9/07" definition-exists="false" ipc-concordant="B23F9/07" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/07</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a shape similar to a crown wheel or a part thereof</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F9/08" definition-exists="false" ipc-concordant="B23F9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by milling, e.g. with helicoidal hob</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F9/082" definition-exists="true" ipc-concordant="B23F9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/082</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with a hob</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F9/084" definition-exists="true" ipc-concordant="B23F9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/084</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the hob being tapered</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="B23F9/086" definition-exists="false" ipc-concordant="B23F9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with two or more tools</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F9/088" definition-exists="false" ipc-concordant="B23F9/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/088</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tools being interlocked</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="B23F9/10" definition-exists="true" ipc-concordant="B23F9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with a face-mill</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F9/105" definition-exists="true" ipc-concordant="B23F9/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with continuous indexing, i.e. with continuous work rotation</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="B23F9/12" definition-exists="false" ipc-concordant="B23F9/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for non-continuous generating processes</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F9/14" definition-exists="false" ipc-concordant="B23F9/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F9/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>for continuous generating processes</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="B23F11/00" definition-exists="true" ipc-concordant="B23F11/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F11/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making worm wheels, e.g. by hobbing</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23F13/00" definition-exists="true" ipc-concordant="B23F13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F13/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making worms by methods essentially requiring the use of machines of the gear-cutting type </text><reference><text>making screw-thread <class-ref scheme="cpc">B23G</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F13/003" definition-exists="false" ipc-concordant="B23F13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F13/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>making worms of conical or barrel shape</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F13/006" definition-exists="false" ipc-concordant="B23F13/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F13/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by grinding</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="B23F13/02" definition-exists="false" ipc-concordant="B23F13/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F13/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making worms of cylindrical shape</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F13/04" definition-exists="false" ipc-concordant="B23F13/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F13/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by grinding</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F13/06" definition-exists="true" ipc-concordant="B23F13/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F13/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making worms of globoidal shape</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F13/08" definition-exists="false" ipc-concordant="B23F13/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F13/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by grinding</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="B23F15/00" definition-exists="true" ipc-concordant="B23F15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2016-05-01" status="published"><classification-symbol>B23F15/00</classification-symbol><class-title date-revised="2016-05-01"><title-part><text>Methods or machines for making gear wheels of special kinds not covered by groups <class-ref scheme="cpc">B23F7/00</class-ref>&#160;-&#160;<class-ref scheme="cpc">B23F13/00</class-ref></text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F15/005" definition-exists="false" ipc-concordant="B23F15/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F15/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Making sprocket teeth</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="B23F15/02" definition-exists="false" ipc-concordant="B23F15/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F15/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making gear teeth on wheels of varying radius of operation, e.g. on elliptical wheels</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F15/04" definition-exists="false" ipc-concordant="B23F15/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F15/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making fine-pitch gear teeth on clock wheels or the like by special machining</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F15/06" definition-exists="true" ipc-concordant="B23F15/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F15/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making gear teeth on the front surface of wheels, e.g. for clutches or couplings with toothed faces</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F15/08" definition-exists="true" ipc-concordant="B23F15/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F15/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Making intermeshing rotors, e.g. of pumps</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="7" additional-only="false" sort-key="B23F17/00" definition-exists="true" ipc-concordant="B23F17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F17/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Special methods or machines for making gear teeth, not covered by the preceding groups</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F17/001" definition-exists="false" ipc-concordant="B23F17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F17/001</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for making gear pairs</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="B23F17/003" definition-exists="false" ipc-concordant="B23F17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F17/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for dry cutting</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="B23F17/005" definition-exists="true" ipc-concordant="B23F17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F17/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>for machining tooth fillet or tooth root</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="B23F17/006" definition-exists="true" ipc-concordant="B23F17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F17/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using different machines or machining operations</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F17/008" definition-exists="true" ipc-concordant="B23F17/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F17/008</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Features relating to transfer of work gears between different work stations</text></CPC-specific-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="B23F19/00" definition-exists="true" ipc-concordant="B23F19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Finishing gear teeth by other tools than those used for manufacturing gear teeth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F19/002" definition-exists="false" ipc-concordant="B23F19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/002</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Modifying the theoretical tooth flank form, e.g. crowning </text><reference><text><class-ref scheme="cpc">B23F19/10</class-ref> takes precedence</text></reference></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F19/005" definition-exists="true" ipc-concordant="B23F19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a face-mill-type tool, e.g. a milling or a grinding tool</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="B23F19/007" definition-exists="false" ipc-concordant="B23F19/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/007</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a gear-shaped tool</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="B23F19/02" definition-exists="true" ipc-concordant="B23F19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lapping gear teeth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F19/025" definition-exists="false" ipc-concordant="B23F19/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/025</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Lapping bevel gears by making use of a correspondingly shaped counterpart</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="B23F19/04" definition-exists="false" ipc-concordant="B23F19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Lapping spur gears by making use of a correspondingly shaped counterpart</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F19/045" definition-exists="false" ipc-concordant="B23F19/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/045</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the counterpart having internal toothing</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="B23F19/05" definition-exists="true" ipc-concordant="B23F19/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/05</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Honing gear teeth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F19/052" definition-exists="true" ipc-concordant="B23F19/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/052</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by making use of a tool in the shape of a worm</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="B23F19/055" definition-exists="false" ipc-concordant="B23F19/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/055</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by making use of a tool in the shape of a bevel gear or a crown gear</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="B23F19/057" definition-exists="true" ipc-concordant="B23F19/05" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/057</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by making use of a tool in the shape of an internal gear</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="B23F19/06" definition-exists="true" ipc-concordant="B23F19/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaving the faces of gear teeth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F19/063" definition-exists="true" ipc-concordant="B23F19/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by making use of a tool in the shape of an internal gear</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="B23F19/066" definition-exists="false" ipc-concordant="B23F19/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with plural tools</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="B23F19/10" definition-exists="true" ipc-concordant="B23F19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chamfering the end edges of gear teeth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F19/101" definition-exists="false" ipc-concordant="B23F19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/101</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by planing</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="B23F19/102" definition-exists="false" ipc-concordant="B23F19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/102</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by milling</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F19/104" definition-exists="false" ipc-concordant="B23F19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/104</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tool being a hob</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="B23F19/105" definition-exists="false" ipc-concordant="B23F19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/105</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tool being an end mill</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="B23F19/107" definition-exists="true" ipc-concordant="B23F19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/107</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tool being a fly cutter</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="B23F19/108" definition-exists="false" ipc-concordant="B23F19/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/108</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>by brushing</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="B23F19/12" definition-exists="false" ipc-concordant="B23F19/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>by grinding</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F19/125" definition-exists="false" ipc-concordant="B23F19/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F19/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the tool being a grinding worm</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="B23F21/00" definition-exists="true" ipc-concordant="B23F21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Tools specially adapted for use in machines for manufacturing gear teeth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F21/005" definition-exists="false" ipc-concordant="B23F21/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/005</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with plural tools on a common axis</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="B23F21/02" definition-exists="true" ipc-concordant="B23F21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Grinding discs</text></title-part><title-part><text>Grinding worms </text><reference><text>truing grinding tools <class-ref scheme="cpc">B24B</class-ref>; grinding tools in general <class-ref scheme="cpc">B24D</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F21/023" definition-exists="true" ipc-concordant="B23F21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/023</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Face-mill-type, i.e. cup-shaped, grinding wheels</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="B23F21/026" definition-exists="true" ipc-concordant="B23F21/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/026</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Grinding worms</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="B23F21/03" definition-exists="true" ipc-concordant="B23F21/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/03</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Honing tools</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F21/035" definition-exists="true" ipc-concordant="B23F21/03" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/035</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Honing worms</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="B23F21/04" definition-exists="true" ipc-concordant="B23F21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Planing or slotting tools</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F21/043" definition-exists="false" ipc-concordant="B23F21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/043</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/046" definition-exists="false" ipc-concordant="B23F21/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/046</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/06" definition-exists="true" ipc-concordant="B23F21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having a profile which matches a gear tooth profile</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/063" definition-exists="false" ipc-concordant="B23F21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/063</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/066" definition-exists="false" ipc-concordant="B23F21/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/066</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/08" definition-exists="true" ipc-concordant="B23F21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>having the same profile as a tooth or teeth of a rack</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/083" definition-exists="false" ipc-concordant="B23F21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/083</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/086" definition-exists="false" ipc-concordant="B23F21/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/086</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/10" definition-exists="true" ipc-concordant="B23F21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Gear-shaper cutters having a shape similar to a spur wheel or part thereof</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/103" definition-exists="false" ipc-concordant="B23F21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/103</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/106" definition-exists="false" ipc-concordant="B23F21/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/106</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/12" definition-exists="true" ipc-concordant="B23F21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Milling tools</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F21/122" definition-exists="true" ipc-concordant="B23F21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/122</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having a shape similar to that of a gear or part thereof, with cutting edges situated on the tooth contour lines</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="B23F21/124" definition-exists="false" ipc-concordant="B23F21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/124</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with cutting teeth disposed on the inner periphery of a ring</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="B23F21/126" definition-exists="false" ipc-concordant="B23F21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/126</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/128" definition-exists="false" ipc-concordant="B23F21/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/128</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/14" definition-exists="true" ipc-concordant="B23F21/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/14</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Profile cutters of disc type</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/143" definition-exists="false" ipc-concordant="B23F21/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/143</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/146" definition-exists="false" ipc-concordant="B23F21/14" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/146</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/16" definition-exists="true" ipc-concordant="B23F21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/16</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Hobs</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/163" definition-exists="false" ipc-concordant="B23F21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/163</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/166" definition-exists="true" ipc-concordant="B23F21/16" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/166</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/18" definition-exists="true" ipc-concordant="B23F21/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/18</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Taper hobs, e.g. for bevel gears</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/183" definition-exists="false" ipc-concordant="B23F21/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/183</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23F21/186" definition-exists="false" ipc-concordant="B23F21/18" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/186</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="9" additional-only="false" sort-key="B23F21/20" definition-exists="true" ipc-concordant="B23F21/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/20</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Fly cutters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/203" definition-exists="false" ipc-concordant="B23F21/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/203</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/206" definition-exists="false" ipc-concordant="B23F21/20" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/22" definition-exists="true" ipc-concordant="B23F21/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/22</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Face-mills for longitudinally-curved gear teeth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/223" definition-exists="false" ipc-concordant="B23F21/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/223</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/226" definition-exists="true" ipc-concordant="B23F21/22" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/226</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/23" definition-exists="false" ipc-concordant="B23F21/23" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/23</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>with cutter teeth arranged on a spiral curve for continuous generating processes</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/233" definition-exists="false" ipc-concordant="B23F21/23" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/233</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="12" additional-only="false" sort-key="B23F21/236" definition-exists="false" ipc-concordant="B23F21/23" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/236</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F21/24" definition-exists="true" ipc-concordant="B23F21/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/24</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Broach-milling tools</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F21/241" definition-exists="false" ipc-concordant="B23F21/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/241</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/243" definition-exists="false" ipc-concordant="B23F21/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/243</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/245" definition-exists="false" ipc-concordant="B23F21/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/245</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Face broach mills</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/246" definition-exists="false" ipc-concordant="B23F21/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/246</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="11" additional-only="false" sort-key="B23F21/248" definition-exists="false" ipc-concordant="B23F21/24" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/248</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/26" definition-exists="true" ipc-concordant="B23F21/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/26</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Broaching tools</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F21/262" definition-exists="false" ipc-concordant="B23F21/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/262</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements </text><reference><text><class-ref scheme="cpc">B23F21/266</class-ref> and <class-ref scheme="cpc">B23F21/268</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="B23F21/264" definition-exists="false" ipc-concordant="B23F21/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/264</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/266" definition-exists="true" ipc-concordant="B23F21/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/266</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>mounted on an endless chain or belt</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="B23F21/268" definition-exists="true" ipc-concordant="B23F21/26" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/268</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pot broaches</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="B23F21/28" definition-exists="true" ipc-concordant="B23F21/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/28</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Shaving cutters</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F21/282" definition-exists="false" ipc-concordant="B23F21/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/282</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>with inserted cutting elements</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F21/284" definition-exists="false" ipc-concordant="B23F21/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/284</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>in exchangeable arrangement</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="B23F21/286" definition-exists="true" ipc-concordant="B23F21/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/286</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>having the shape of an internal gear</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="B23F21/288" definition-exists="false" ipc-concordant="B23F21/28" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F21/288</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>the cutting edges on consecutive teeth being helically arranged</text></CPC-specific-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="B23F23/00" definition-exists="true" ipc-concordant="B23F23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/00</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines </text><reference><text>tool-guiding mechanisms, <u>see</u> the relevant groups for making gear teeth; accessories or equipment not restricted to gear-cutting machines <class-ref scheme="cpc">B23Q</class-ref></text></reference></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F23/003" definition-exists="false" ipc-concordant="B23F23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/003</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Generating mechanisms</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="B23F23/006" definition-exists="true" ipc-concordant="B23F23/00" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/006</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Equipment for synchronising movement of cutting tool and workpiece, the cutting tool and workpiece not being mechanically coupled</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="B23F23/02" definition-exists="false" ipc-concordant="B23F23/02" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/02</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Loading, </text><CPC-specific-text><text>unloading</text></CPC-specific-text><text> or chucking arrangements for workpieces</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F23/04" definition-exists="true" ipc-concordant="B23F23/04" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/04</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Loading </text><CPC-specific-text><text>or unloading</text></CPC-specific-text><text> arrangements</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F23/06" definition-exists="true" ipc-concordant="B23F23/06" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/06</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Chucking arrangements</text></title-part></class-title></classification-item></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F23/08" definition-exists="false" ipc-concordant="B23F23/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/08</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Index mechanisms</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F23/085" definition-exists="false" ipc-concordant="B23F23/08" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/085</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>of the continuous type</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="B23F23/10" definition-exists="true" ipc-concordant="B23F23/10" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/10</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Arrangements for compensating irregularities in drives or indexing mechanisms</text></title-part></class-title></classification-item>
<classification-item breakdown-code="false" not-allocatable="false" level="8" additional-only="false" sort-key="B23F23/12" definition-exists="false" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/12</classification-symbol><class-title date-revised="2013-01-01"><title-part><text>Other devices, e.g. tool holders</text></title-part><title-part><text>Checking devices for controlling workpieces in machines for manufacturing gear teeth</text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="9" additional-only="false" sort-key="B23F23/1206" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1206</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tool mountings</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F23/1212" definition-exists="false" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1212</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using fluid pressure means</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="B23F23/1218" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1218</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Checking devices for controlling workpieces in machines for manufacturing gear teeth</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="B23F23/1225" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1225</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Arrangements of abrasive wheel dressing devices on gear-cutting machines </text><reference><text>dressing devices <u>per se</u> <class-ref scheme="cpc">B24B53/00</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="B23F23/1231" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1231</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>using a gear-shaped dressing tool</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="B23F23/1237" definition-exists="false" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1237</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Tool holders</text></CPC-specific-text></title-part></class-title>
<classification-item breakdown-code="false" not-allocatable="false" level="10" additional-only="false" sort-key="B23F23/1243" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1243</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Hob holders</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="B23F23/125" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/125</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Face mill holders</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="B23F23/1256" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1256</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Rack cutter holders</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="B23F23/1262" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1262</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Grinding disc holders; Disc-type milling-cutter holders</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="B23F23/1268" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1268</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Face-mill-type grinding wheel holders</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="B23F23/1275" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1275</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Grinding or honing worm holders</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="B23F23/1281" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1281</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Honing, shaving or lapping tool holders</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="B23F23/1287" definition-exists="true" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1287</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Pinion shaper cutter holders</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="B23F23/1293" definition-exists="false" ipc-concordant="B23F23/12" c-set-base-allowed="false" c-set-subsequent-allowed="true" date-revised="2013-01-01" status="published"><classification-symbol>B23F23/1293</classification-symbol><class-title date-revised="2013-01-01"><title-part><CPC-specific-text><text>Workpiece heads</text></CPC-specific-text></title-part></class-title></classification-item></classification-item></classification-item></classification-item></classification-item></class-scheme>