IPC Main Group
G08C 23/00 Non-electric signal transmission systems, e.g. optical systems
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- SIGNALLING
- Subclass:
- TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
2 direct subcodes
Child Classifications
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- G08C 23/02 using acoustic waves
- G08C 23/04 using light waves, e.g. infrared