73455370
Dec 2, 1983
Jul 23, 1985
ELECTRONIC ACCESS CONTROL SYSTEMS, COMPRISING ELECTRONIC KEYS, DETECTION COILS, CONTROL UNITS, ACCESSORS, TRANSMITTERS, RECEIVERS, DOOR RELEASES, PROGRAMMERS, COMPUTERS, TERMINALS, PRINTERS, VIDEO DISPLAY UNITS COMPRISING VIDEO DISPLAY PANELS, VIDEO DISPLAY SCREENS, AND PARTS THEREFOR
Electrical and Scientific Apparatus