CPC Subgroup
B23C 3/28 Grooving workpieces (tread-cutting by milling B23G1/32)
Full Title
Milling particular work; Special milling operations; Machines therefor (milling gear-teeth B23F, ) > Grooving workpieces (tread-cutting by milling B23G1/32)
4 direct subcodes
Child Classifications
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