IPC Subgroup
H03H 9/52 Electric coupling means
Introduced: January 1980
Last revised: January 2006
Full Title
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators > Filters > Coupling means therefor > Electric coupling means
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS