9
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.
electrostatic precipitators for dust collection and recovery
11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
air conditioners for conditioning air or other gases by heating, cooling, humidifying, dehumidifying, heat or moisture exchange and cleaning, and channels and ducts enclosed in such apparatus; heat exchangers-namely, hot air furnaces, air heating and cooling coils and induction units; fans, blowers, ventilators, air grilles, air valves, air dampers, air diffusers, dry or wet filters or separators; air dryers for lumber, veneer, board sheets, cellulose, and other fibrous materials, paper cardboard, grain, and flash-drying units, pulp drying units, utilizing heat