IPC Subgroup
A63H 31/02 Screw-spindle mechanisms
Introduced: September 1968
Last revised: January 2006
Full Title
Gearing for toys > Screw-spindle mechanisms
Classification Context
- Section:
- HUMAN NECESSITIES
- Class:
- SPORTS; GAMES; AMUSEMENTS
- Subclass:
- TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS