75705052
Jun 4, 1999
Mar 20, 2001
optical transmission, receiving, and networking components, namely, transmitters, receivers, network gateways, switches, cross-connects, routers, amplifiers, add/drop multiplexers, Bragg gratings, multiplexers, demultiplexers, regenerators, and optical network and element management, planning, and interface software and computer systems, namely, transmitters, receivers, network gateways, switches, cross-connects, routers, amplifiers, add/drop multiplexers, Bragg gratings, multiplexers, demultiplexers, regenerators and optical systems, namely, transmitters, receivers, network gateways, switches, cross-connects, routers, amplifiers, add/drop multiplexers, Bragg gratings, multiplexers, demultiplexers, regenerators employing such named optical components for use in optical communications
Electrical and Scientific Apparatus