DIFF Subgroup
B23F 9/04 by planing or slotting with reciprocating cutting tools
Introduced: September 1968
Full Title
Making gears having teeth curved in their longitudinal direction > by planing or slotting with reciprocating cutting tools
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- B23F 9/07 having a shape similar to a crown wheel or a part thereof since 1974 IPC+CPC Available in IPC and CPC