74222111
Nov 18, 1991
Mar 7, 1995
fiber optic microwave transmission, switching and networking apparatus for cable television systems; namely, transmitters, receivers, controllers, switching units, network service units, fiber optic links for video/audio transmission, microwave entrance links, lightwave transmitters/receivers, video modulators/demodulators, audio/data modems, and computer hardware and software for monitoring and network control
Electrical and Scientific Apparatus