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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.
apparatus for testing gas, liquids and solids; automatic valves for controlling the flow of oil in pipelines; automotive measuring instruments, namely, water temperature gauges, air fuel/ratio gauges, boost gauges, vacuum gauges and exhaust gas temperature gauges; diesel oil emission testers; electronic apparatus for testing automobile engine oil; electronic valves for controlling gas or fluids; flue gas analyzers; gas detectors for detecting the presence of gas; gas sensors for measuring gas concentration; gas testing instruments; oil level sensors; oil and gas well downhole survey and measurement equipment; remote fuel oil level sensing system; small sample containers, for testing oils and lubricants; technical measuring, testing and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas and liquids