DIFF Subgroup
H03H 9/66 Phase shifters
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators > Phase shifters
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) > Phase shifters
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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