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Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus.
radio broadcast transmission signal synchronizers for synchronizing the broadcasting of signals for multiple transmission sites; digital cross-connect switches and digital cross-connect servers for consolidation of communications services, namely, voice, data, local area network, video, program audio or other communications services over a single transmission line and for interconnecting and routing signals to and from multiple transmission lines; computer software for error monitoring, quality of service monitoring, network performance monitoring and service provisioning of communications networks; plug-in integrated circuit modules for editing communications signal transmissions by inserting, dropping and modifying voice, data, program, audio and video signals