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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.
piezoelectric ceramic components, namely, discs, hollow cylinders, solid cylinders, hemispheres and rectangular bars for use in the manufacture of transducers, hydrophones, sonar equipment, and ultrasonic equipment; piezoelectric ceramic materials and products, namely, piezoelectric ceramic wafers, discs, tubes, and composites for use in the manufacture of medical ultrasound imaging transducers and hydrophones