IPC Subgroup
A44B 1/4 with helical wire-shank screwed into material
Introduced: September 1968
Last revised: January 2006
Full Title
Buttons > adapted for special ways of fastening > with helical wire-shank screwed into material
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- HABERDASHERY; JEWELLERY
- Subclass:
- BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE