73198984
Jan 4, 1979
Dec 9, 1980
Burglar Alarms and Components Therefor-Namely, Ultrasonic Motion Detectors and Intrusion Detection Systems, Comprising Master Electrical Control Boxes, Remote Centers, Switches, Wiring, Alarm Bells, Panic Buttons, Key Locks and Warning Decals, All Sold as a Unit
Electrical and Scientific Apparatus