IPC Main Group
H04B 17/00 Monitoring; Testing
Introduced: July 1974
Last revised: January 2015
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- TRANSMISSION
Scope Notes
Limiting references: Monitoring of line transmission systems; testing of line transmission systems Arrangements for monitoring or testing transmission systems employing electromagnetic waves other than radio waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
Related Keywords
MONITORING of transmission systems in general
4 direct subcodes
Child Classifications
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