Classification Information
Electronic circuits for controlling the output of an audio signaling device of a vehicle and for vary-ing the output of the audio signaling device; Electronic components in the nature of original and aftermarket hardware for controlling the output of an audio signaling device of a vehicle and for varying the output of the audio signaling device; Electronic control circuits for controlling the output of an audio signaling device of a vehicle and for vary-ing the output of the audio signaling device
Electrical and Scientific Apparatus