scientific, nautical, surveying, electric, photographic, cinematographic; optical, weighing, measuring, signalling, checking (supervision); life-saving and teaching apparatus and instruments; 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; alarms; te...

Digital transmission of voice and communications via digital telephone systems and computer terminals