73239367
Nov 15, 1979
Jun 16, 1981
Electronic Sirens for Emergency Vehicles, Switching and Control Consoles for Switching Different Emergency Vehicle Devices-Namely, the Switching of Sirens, Headlamps, Warning Lamps, Flashing Lamps, and Providing an Automatic Lock for the Trunk of an Emergency Vehicle; and Flashing Switchers and Electronic Flashers for Emergency Vehicles
Electrical and Scientific Apparatus