IPC Subgroup
G08B 7/02 using mechanical transmission
Introduced: September 1968
Last revised: January 2006
Full Title
Signalling systems according to two or more of groups > using mechanical transmission
Classification Context
- Section:
- PHYSICS
- Class:
- SIGNALLING
- Subclass:
- SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS