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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.
an apparatus for interrogating the integrity of and calibrating controllersand computer systems, displays, sensors,instruments, and industrial type actuators and permanent wiring in production facilities which interconnectcomputers and controllers with displays,sensors, instruments, and industrial type actuators