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PCE
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DIFF Subgroup
B21G 7/06

of undulated hairpins

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Making pins of U-like shape or split-pins > of U-like shape > of hairpins > of undulated hairpins

CPC:

Making pins of U-like shape or split-pins (of paper fasteners or staples B21D53/46, B21F45/16) > of U-like shape > of hairpins > of undulated hairpins

No child classifications to compare. This is a leaf node in both IPC and CPC.