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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.
electrical voice intracommunications systems for use in the production of live musical performances, theatre, and other live events, namely, electrical voice intracommunications systems comprising control stations, interface modules, frames, controller cards, connectors, power supplies, panels and mountings, software for operation of the foregoing, and user manuals sold as a package therewith