73652291
Mar 30, 1987
Dec 1, 1987
VEHICLE TRACKING SYSTEM COMPRISING TRANSMITTERS, RECEIVERS OR TRANSCEIVERS, A COMPUTER FOR DETERMINING THE VEHICLE'S LOCATION, AND AN INTERFACE WITH THE TRANSMITTER, ALL CONTAINED IN THE VEHICLE; A CENTRAL MONITORING SYSTEM COMPRISING A COMPUTER, KEYBOARD, DISPLAY, AND COMPUTER PROGRAM, ALL FOR USE IN VISUALLY DISPLAYING SAME TIME LOCATION OF VEHICLES
Electrical and Scientific Apparatus