DIFF Subgroup
B23F 13/08 by grinding
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Making worms by methods essentially requiring the use of machines of the gear-cutting type > Making worms of globoidal shape > by grinding
CPC:
Making worms by methods essentially requiring the use of machines of the gear-cutting type (making screw-thread B23G) > Making worms of globoidal shape > by grinding
No child classifications to compare. This is a leaf node in both IPC and CPC.