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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.
fire suppression system and component parts therefore, namely, foam proportioning system for fire-fighting equipment comprised of foam eductor, adjustable controller area network driven electric valve, touchscreen display, pressure transducers, harness, control solenoids and flowmeters; compressed air foam system for use in fire extinguishing comprised of air compressors, tubing, and the container for holding the foam