73443489
Sep 12, 1983
Jan 7, 1986
OPTICAL MEASUREMENT SYSTEMS COMPRISING OPTICAL ENERGY SOURCE, OPTICAL RECEIVER, AND SPECTRUM ANALYZER; SIGNAL ENCODERS/DECODERS, LASERS, OPTICAL FIBER SLEEVES, OPTICAL FIBER ASSEMBLY TRESTLE, OPTICAL FIBER TERMINAL DISTRIBUTION BOXES, OPTICAL TRANSMITTERS AND RECEIVERS, OPTICAL FIBERS, OPTICAL SWITCHES, OPTICAL CONNECTORS, OPTICAL FILTERS, OPTICAL MULTIPLEXERS AND DEMULTIPLEXERS, OPTICAL STAR COUPLERS, OPTICAL ATTENUATORS, AND PARTS FOR ALL THE FOREGOING
Electrical and Scientific Apparatus