Vehicle alarm

Details Vehicle alarm Vehicle alarm

1974-10-24

1976-11-30

Caldwell, John W.

Communications: electrical

Audible indication

Ultrasonic pest control

340 52R, 331 47, G08B 300

Patent

active

039952681

ABSTRACT:
An alarm device for use in a vehicle which utilizes an audio frequency oscillator to drive a buzzer or tone device audible to the occupants of the vehicle. The alarm includes a control circuit which automatically stops the alarm after a preselected interval and may include modulated or interrupted alarm.

REFERENCES:
patent: 3283254 (1966-11-01), Haynie
patent: 3460136 (1969-08-01), Jambazian
patent: 3858175 (1974-12-01), Kopera

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