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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.
reference materials in the nature of pellets, drillings, disks, pins, chips, liquids, and powders for calibrating scientific and laboratory apparatus, namely, analyzers for analytical specimen samples to facilitate calibration and quality control of instruments and for the determination of chemical analysis for elemental and molecular and complex chemistries in general