74232186
Dec 19, 1991
Jul 18, 1995
security and protection systems comprising anti-intrusion alarms, video monitors, motion sensors, status transducers, electronic circuitry for controlling use of communication channels; namely, communication detectors, communication authorizers, and communication 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