IPC Subgroup
B21G 7/06 of undulated hairpins
Introduced: September 1968
Last revised: January 2006
Full Title
Making pins of U-like shape or split-pins > of U-like shape > of hairpins > of undulated hairpins
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- Subclass:
- MAKING NEEDLES, PINS OR NAILS OF METAL