IPC Subgroup
G08B 1/02 using only mechanical transmission
Introduced: September 1968
Last revised: January 2006
Full Title
Systems for signalling characterised solely by the form of transmission of the signal > using only mechanical transmission
Classification Context
- Section:
- PHYSICS
- Class:
- SIGNALLING
- Subclass:
- SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS