IPC Subgroup
H03H 9/02 Details
Introduced: September 1968
Last revised: January 2006
Full Title
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators > Details
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
2 direct subcodes
Child Classifications
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- H03H 9/05 Holders or supports
- H03H 9/125 Driving means, e.g. electrodes, coils