DIFF Subgroup
B21G 7/02 of U-like shape
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Making pins of U-like shape or split-pins > of U-like shape
CPC:
Making pins of U-like shape or split-pins (of paper fasteners or staples B21D53/46, B21F45/16) > of U-like shape
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
Child Classifications
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