DIFF Subgroup
B23F 15/02 Making gear teeth on wheels of varying radius of operation, e.g. on elliptical wheels
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Methods or machines for making gear wheels of special kinds, not covered by groups > Making gear teeth on wheels of varying radius of operation, e.g. on elliptical wheels
CPC:
Methods or machines for making gear wheels of special kinds not covered by groups B23F7/00 - B23F13/00 > Making gear teeth on wheels of varying radius of operation, e.g. on elliptical wheels
No child classifications to compare. This is a leaf node in both IPC and CPC.