IPC Main Group
H04S 7/00 Indicating arrangements; Control arrangements, e.g. balance control
Introduced: January 1980
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC COMMUNICATION TECHNIQUE
- Subclass:
- STEREOPHONIC SYSTEMS
Related Keywords
CONTROL(S) arrangements for stereophonic systemsINDICATING arrangements for stereophonic systems