74010819
Dec 14, 1989
TELEVISION CAMERAS AND PARTS THEREFOR; TELEVISION MONITORS; VIDEO AND/OR AUDIO DOOR SECURITY SYSTEMS, NAMELY, AN EXTERIOR STATION INCLUDING A VIDEO CAMERA AND AN AUDIO TRANSCEIVER, AND AN INTERIOR STATION OR STATIONS INCLUDING A VIDEO MONITOR AND AUDIO TRANSCEIVER; TELEVISION CAMERA AND MONITOR SYSTEMS FOR VEHICLES, NAMELY, ONE OR MORE VEHICLE-MOUNTED VIDEO CAMERAS, AND AN OPERATOR'S VIDEO MONITOR
Electrical and Scientific Apparatus