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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.
signaling apparatus and instruments, namely, railway signals used in railway and metro tracks to detect in a reliable way the presence of a train on a track circuit; monitoring apparatus and instruments used for detecting and displaying anomalous conditions in rails, namely, train presence detectors and broken railway line detectors; apparatus-for transmitting and reproducing sound or images, namely, audio, digital, radio transmitters which work at audio frequency and electrical joints used for transmission of continuous data messages between a stationary location and a train, and vice versa, used in the railway field