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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.
equipment and devices for the protection of human eyes from radiation, namely protective eyeglasses, protective eye shields, shades and protective helmets for welders, sun glasses; optical filters, namely absorption filters, interference filters, reflection filters, infrared filters, ultraviolet filters, polarization controllable with regard to the transmission rate; equipment for the control of the rate of transmission of radiation for optical filter and filter arrays