Air cooling apparatus; Air purifying apparatus and machines; Apparatus for filtering drinking water; Aquarium filtration apparatus; Aquarium lights; Electric coolers; Electric lights for Christmas trees; Electric discharge tubes for lighting; Gas scrubbing apparatus; Ice machines and apparatus; Lamp casings; Lamp mantles; Lamps; Light bulbs for directional signals for vehicles; Lights, electric, for Christmas trees; Searchlights; Water filtering apparatus; Water purification installations; Wa...