adapted for special ways of fastening

Introduced: September 1968

Full Title

Buttons > adapted for special ways of fastening

Of 9 combined children, 8 exist in both systems.

1 codes are CPC-only extensions.

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A44B 1/185 CPC only CPC only
A44B 1/20 attached by thread visible to the front IPC+CPC Available in IPC and CPC
A44B 1/22 attached by thread not visible to the front IPC+CPC Available in IPC and CPC
A44B 1/26 with resilient shank IPC+CPC Available in IPC and CPC
A44B 1/28 with shank and counterpiece IPC+CPC Available in IPC and CPC
A44B 1/38 Clamping by spring action IPC+CPC Available in IPC and CPC
A44B 1/40 with helical wire-shank screwed into material IPC+CPC Available in IPC and CPC
A44B 1/42 with deformable prongs IPC+CPC Available in IPC and CPC
A44B 1/44 with deformable counterpiece IPC+CPC Available in IPC and CPC