IPC Subgroup
G04D 1/1 Devices for opening or closing watch bottoms or covers
Introduced: September 1968
Last revised: January 2006
Full Title
Gripping, holding, or supporting devices > Devices for opening or closing watch bottoms or covers
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES