DIFF Subgroup
B23F 5/28 by broaching; by broach-milling
Introduced: September 1968
Full Title
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 > by broaching; by broach-milling
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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