9
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.
autonomous protective devices comprised of flow meters, measuring apparatus and infrared electric detectors, for measuring the level, speed, density and flow rates of liquids, gases, bulk solids and mixtures thereof for safety purposes, and component parts thereof; autonomous protective systems in the nature of explosive containment vessels comprised of components with safety function, namely, bursting discs and rupture discs for controlling, monitoring and protection of and against high and low pressures and vacuum conditions resulting from explosions