IPC Subgroup
G04C 21/08 with snail
Introduced: September 1968
Last revised: January 2006
Full Title
Producing acoustic time signals by electrical means > Indicating the time of the day > by striking mechanism > with snail
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- ELECTROMECHANICAL CLOCKS OR WATCHES
Related Keywords
PROGRAMMING in electric clocks