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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.
stationary and portable testing screens for sizing test samples of crushed stone, sand and gravel, slag, coal and coke, ores and similar materials, sample splitters for preparing samples for test-sizing, and accessories and parts thereof-namely, screen trays, tray racks, sand attachments, door enclosures, hydraulic and mechanical clamps, wire brushes, carrying cases for screens, covers and cover holders, and material pans