IPC Subgroup
H03C 3/42 by means of electromechanical devices
Introduced: January 1980
Last revised: January 2006
Full Title
Angle modulation > by means of electromechanical devices
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- MODULATION
Scope Notes
Limiting references: Angle modulation using variable impedance driven mechanically or acoustically