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 including but not limited to telecommunications and communications equipment, multi-line, multi-extension computer telephony systems comprising an electronic switchboard with mobile telecommunications, fax scanning, voice and data capabilities; magnetic data carriers, computer software related to telecommunications, recording discs; automatic vending machines and mechanisms for coin-operated apparatus; cash registers, calculating machines, data processing equipment and computers; fire-extinguishing apparatus