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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.
reactors namely current limiting reactors, filter reactors, shunt reactors, thyristor controlled shunt compensating reactors, shunt capacitor switching reactors, capacitor discharge reactors for series capacitor bank applications, electric arc furnace series reactors, high voltage series reactors, commutation reactors, current limiting reactors used to limit the rate of rise of current with respect to time, reactor enclosures, arc suppression coils, transient suppression coils; instrument transformers namely current transformers, capacitive voltage transformers, potential transformers, combined current and potential transformers, current transducers, voltage transducers and combined current and voltage transducers; power line carrier equipment namely line tuners, transmitters-receivers, audio tone transmitters and receivers, line traps, coupling capacitors; relay communications equipment namely transmitters and receivers; grading capacitors; capacitor protection relays; power quality and reactive power management equipment namely active filters, combination thyristor shunt reactors and fixed shunt capacitors, active power conditioners