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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.
educational and industrial scientific supplies and teaching apparatus, namely, models of crystal structures, molecular models, orbital models, kits comprising measuring instruments, acoustic apparatus, heat measuring apparatus, and optical apparatus, all for the instruction of principles of physics and optics, and laboratory apparatus, namely, clamps calipers, dynamometers, tuning forks, sonometers, calorimeters, condensers, thermometers, flasks, tubing, beakers, burners, solar engines, thermochrome crayons, pressure chambers, lenses, solar batteries and cells, thermopiles, lamps, lenses, diaphragms, prisms, filters, mirrors, screens, stroboscopes, magnets, generators, transformers, rheostats, meters, generators, transformers, oscilloscopes, thermionic emission tubes, cloud chambers, pendulums