[ Air filtering installations; ] Apparatus for disinfecting water; [ Automatic flush valves for toilets; Cooling installations for water; Dish disinfectant apparatus for industrial purposes; Disinfecting ultraviolet lamps housed in a container or cover for disinfecting objects placed therein; Drinking fountains; Electric griddles; Electric radiant heaters; Electric towel warmers; Faucets; Germicidal lamps for purifying air; Lamps; Magnetic water treatment apparatus; Sewage disposal plants; ] ...