74118442
Nov 27, 1990
Jul 25, 1995
security and protection systems comprising anti-intrusion alarms, video monitors, motion sensors, status transducers, communications detectors, communications authorizers, and communications controllers
Electrical and Scientific Apparatusinstallation, maintenance, and repair of security and protection systems
Building Construction and Repairmonitoring, consulting for and development of security and protection systems
Computer and Scientific