H03H 9/125 Driving means, e.g. electrodes, coils
Introduced: January 1980
Full Title
Full titles differ between systems:
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators > Details > Driving means, e.g. electrodes, coils
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators (electro-acoustic transducers such as loudspeakers, microphones or gramophone pick-ups H04R; piezoelectric, electrostrictive or magnetostrictive devices with mechanical input or output, e.g. actuators or sensors, H10N30/00, H10N35/00) > Details > Driving means, e.g. electrodes, coils
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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- H03H 9/13 for networks consisting of piezoelectric or electrostrictive materials (for networks using surface acoustic waves H03H9/145) since 1980 +3 CPC IPC+CPC Available in IPC and CPC
- H03H 9/135 for networks consisting of magnetostrictive materials (H03H9/145 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
- H03H 9/145 for networks using surface acoustic waves since 1980 +5 CPC IPC+CPC Available in IPC and CPC