73310191
May 12, 1981
Oct 25, 1983
Electronic Sirens for Emergency Vehicles, Switching and Control Consoles for Switching Different Emergency Vehicle Units-Namely, the Switching of Sirens, Headlamps, Warning Lamps, Flashing Lamps, and Providing an Automatic Lock for the Trunk of an Emergency Vehicle; and Flashing Switches and Electronic Flashers for Emergency Vehicles
Electrical and Scientific Apparatus