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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H03H 9/13

for networks consisting of piezoelectric or electrostrictive materials (for networks using surface acoustic waves H03H9/145)

Introduced: January 1980

Title

Titles differ between systems:

IPC: for networks consisting of piezoelectric or electrostrictive materials

CPC: for networks consisting of piezoelectric or electrostrictive materials (for networks using surface acoustic waves H03H9/145)

Full Title

Full titles differ between systems:

IPC:

Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators > Details > Driving means, e.g. electrodes, coils > for networks consisting of piezoelectric or electrostrictive materials

CPC:

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 > for networks consisting of piezoelectric or electrostrictive materials (for networks using surface acoustic waves H03H9/145)

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Child Classifications

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