73828195
Sep 28, 1989
Jun 26, 1990
SERIES OF SECURITY ALARM SYSTEMS COMPRISING MONITORS FOR DOORS, WINDOWS, SMOKE DETECTORS, SAFES, AREA SENSORS; CRITICAL EQUIPMENT, NAMELY, HUMIDITY AND MOISTURE CONTROL UNITS, FREEZERS AND HEATING AND AIR CONDITIONING AND VENTILATING EQUIPMENT CONTROLLERS; CODED CARD ACCESS CONTROLLERS, INTERIOR AND PERIMETER INTRUSION SENSORS; SUPERVISORY FIRE PROTECTORS; SIRENS; AUTOMATIC DIALER FOR ALARM CONDITTION TRANSMISSION; BACKUP BATTERY AND BATTERY CHARGER; DIGITAL OR CATHODE RAY TUBE DISPLAY AND MICROPROCESSOR BASED CONTTROL PANEL WITH ALPHANUMERIC KEYPAD, OR FULL KEYBOARD AND DESK TOP PRINTER
Electrical and Scientific Apparatus