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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.
personal protective equipment, namely, personal protection kits including protective clothing, disposable gloves, neoprene gloves, respirators, and hazardous material cleaning supplies; leak detection services, namely, leak detection and repair of gas filled, energized, electrical equipment; gas circuit breaker maintenance and testing services, namely, reclamation and refilling of gasses used in energized electrical equipment, field maintenance and repair of gas circuit breakers; portable laboratory services, namely, sampling, analyzing, and compliance data reporting relating to gases and oils used in energized electrical equipment