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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.
custom-engineered industrial pollution control and product recovery systems and equipment comprising cyclone dust collectors, gaseous and particulate scrubbers, venturi scrubbers and packed bed scrubbers, fabric and cartridge dust collectors, oil mist collectors, aerodynamic classifiers, and pneumatic conveyors