Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification (mechanical remote-control arrangements H03J1/00 )

Child Classifications

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• H03J 9/002
• H03J 9/005
• H03J 9/007
• H03J 9/02 using radio transmission; using near-field transmission
• H03J 9/04 using ultrasonic, sonic or infrasonic waves
• H03J 9/06 using electromagnetic waves other than radio waves, e.g. light