TELECOMMUNICATIONS AND DATA NETWORKING EQUIPMENT, NAMELY OPTICAL NETWORK HARDWARE AND SOFTWARE FOR OPTICAL TRANSMISSION AND SWITCHING; ELEMENT AND NETWORK MANAGEMENT; LINE AMPLICATION; WAVELENGTH DIVISION MULTIPLEXING AND DEMULTIPLEXING; AND OPTICAL SERVICES DESIGNED TO ENHANCE FIBER OPTIC TRANSMISSIONS

Maintenance and repair of endoscopic medical apparatus

disk drive and controller for WORM ("write once read many times") and eraseable optical disk recording media consisting of a disk drive unit, an electronic subassembly, and associated computer programs