IPC Subgroup
G04G 19/1 Arrangements for supplying back-up power
Introduced: January 2000
Last revised: January 2006
Full Title
Electric power supply circuits specially adapted for use in electronic time-pieces > Arrangements for supplying back-up power
Classification Context
- Section:
- PHYSICS
- Class:
- HOROLOGY
- Subclass:
- ELECTRONIC TIME-PIECES