IPC Subgroup
G04B 1/1 with mainspring
Introduced: September 1968
Last revised: January 2006
Full Title
Driving mechanisms > with mainspring
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME-PIECES USING THE POSITION OF THE SUN, MOON, OR STARS
5 direct subcodes
Child Classifications
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