75750863
Jul 14, 1999
Mar 16, 2004
Intrusion detectors, namely buried or aerial cable sensors, microphonic cable disturbance sensors, fence mounted detection sensors, electrostatic field disturbance sensors, video motion sensors, microwave sensors, networking and display/control devices; parts for intrusion detection systems, namely, sensor cables, connectors, transponders, transducers, transceivers, multiplex alarm monitors and processors, keypads, keyboards, display monitors, video display terminals, signal processors, central processing units, control switches, power supplies, lightning arrestors, weather station sensors, encryption systems, infrared illuminators, display panels
Electrical and Scientific Apparatus