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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.
fire detection products and systems, namely, electronic smoke, heat, flame and gas sensors and detectors; fire detection products and systems, namely, fire alarm sounders in the nature of audio speakers for fire alarms; fire detection products and systems, namely, luminous safety beacons and notification appliances in the nature of horns, alarm bells, strobes and speakers; fire alarm control panels; fire alarm networks comprised primarily of fire alarms, computers, and electric cables; fire alarm accessories, namely, electronic fire alarm speakers; computer interface boards for use with fire alarm systems; fireman's telephones, intercom and voice evacuation systems primarily comprised of intercoms, audio speakers and microphones; and related components for the foregoing, namely, metal and non-metal clamps, metal and non-metal brackets, electrical switches, mounts and adapter plates, all sold as integral component parts of the aforementioned telephones and intercom and voice evacuation systems primarily comprised of intercoms, audio speakers and microphones