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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.
electric servomotors and stepping motors; micrometers; position digital displays and power supplies therefor; stepping motor controllers; dc motor controls; connecting cables; optical benches and tables; sliding bases and carriages for optical benches; magnetic mounting plates for optical benches; precision optical component mounts and systems, namely - mirror supports, mirrors/beam splitter mounts, plate holders, mirror mounts, beam steering periscopes, plate supports, spatial filters, beam expanders, beam splitters, light traps, diaphragms, and slits; optical instruments, namely - autocollimating telescopes, measuring microscopes, microscope autocollimater, and split field microscopes comprising video display units, camera and ultra-violet illuminators