DIFF Subgroup
B21G 7/08 of split-pins, e.g. cotter-pins
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Making pins of U-like shape or split-pins > of split-pins, e.g. cotter-pins
CPC:
Making pins of U-like shape or split-pins (of paper fasteners or staples B21D53/46, B21F45/16) > of split-pins, e.g. cotter-pins
No child classifications to compare. This is a leaf node in both IPC and CPC.