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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.
material system comprised of silicon and one or more of the following-- oxygen, nitrogen, carbon, germanium, fluorine, phosphorus, and boron, used for optical waveguide components and devices, namely, amplitude filters, phase filters, dispersion compensators, variable optical attenuators, switches or add/drop multiplexers for use in telecommunications