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PCE
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DIFF Subgroup
H03J 9/04

using ultrasonic, sonic or infrasonic waves

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification > using ultrasonic, sonic or infrasonic waves

CPC:

Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification (mechanical remote-control arrangements H03J1/00 ) > using ultrasonic, sonic or infrasonic waves

No child classifications to compare. This is a leaf node in both IPC and CPC.