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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.
electronic devices for receiving, displaying, storing and transmitting information relating to temperature, humidity, oxygen cylinder integrity, impact damage and expiration date of respirators not for medical purposes and other than for artificial respiration, namely, temperature detectors, humidity detectors, oxygen detectors, impact damage detectors, and respirator expiration date indicators; self-contained self-rescue apparatus, namely, oxygen breathing units; escape self-contained self-rescue apparatus, namely, oxygen breathing units and emergency escape breathing devices; closed circuit escape self-rescue apparatus, namely, oxygen breathing units and closed circuit escape respirators; rebreather respiratory protection in the nature of breathing apparatus for miners, namely, oxygen breathing units; person-wearable self-contained self-rescuer, namely, oxygen breathing units