11 [ Heat pumps; air conditioners; gas boilers; hot water heaters; refrigerating machines and apparatus, namely, refrigerators, gas refrigerators, and refrigerator shelving, drawers, bins and trays; freezers; ventilators for circulating air; cooling and heating and cooling apparatus for ships, namely, defrosters for ships, air-conditioners for ships, and heaters for ships; cooling and heating and cooling apparatus for aircraft, namely, defrosters for aircraft, air-conditioners for aircraft, and heaters for aircraft; cooling and heating and cooling apparatus for railway vehicles, namely, defrosters for railway vehicles, air-conditioners for railway vehicles, and heaters for railway vehicles; air purifying apparatus and machines, namely, air purifiers; heat exchangers not parts of machines; heating furnaces for industrial purposes, namely, electric furnaces; furnaces other than for experimental purposes, namely, furnaces for optical fiber industry; sintering furnaces for chemical industry; electric furnaces; electric arc lamps and lighting fixtures; street lamps; torches for lighting; dental ovens; gas grills; water purifiers for household use; dish disinfectant apparatus for industrial purposes; ice refrigerators; heating apparatus, namely, gas ranges, gas burners, oil burners, and petrol burners for industrial, commercial, and domestic use; pocket warmers; aquarium filtration apparatus and aquarium heaters; toilet bowls; bath tubs; heating apparatus, namely, gas stoves, hearths, electric radiators for heating buildings, oil stoves, namely, space heaters for household use, hot water heaters; lamps, namely, gas lamps, electric lamps, and oil lamps; washers for water taps; water supply installations, namely, hydrants and drip irrigation emitters and sanitary installations, namely, pipes being part of sanitary facilities, and purification installations for sewage; toilets and water closets; lighting apparatus for ships, namely, lights for boats, namely, lights for water vehicles, lamps for directional signals of ships, and lamp fittings for ships, namely, anti-glare light diffusers; lighting apparatus for aircraft, namely, lights for aircraft vehicles lamps for directional signals of aircraft, and lamp fittings for aircraft, namely, anti-glare light diffusers; lighting apparatus for railway vehicles, namely, lights for railway vehicles, lamps for directional signals of railway vehicles, and lamp fittings for railway vehicles, namely, anti-glare light diffusers; ] lighting apparatus for automobiles, namely, lights for automobiles, lamps for directional signals of automobiles, and lamp fittings for automobiles, namely, anti-glare light diffusers [ ; bicycle lights; electrical boilers for vehicles except boilers for steam engines; devices and equipment for agricultural and livestock purposes, namely, irrigation sprinklers, non-mechanized livestock watering units and drying apparatus for fodder and forage, namely, desiccating machines for fodder and forage; chemical machines and apparatus, namely, electro-chemical flue gas scrubbing machines; ionization apparatus for the treatment of air, namely, air purifiers; water purifying installation, namely, water purification units; oil-scrubbing apparatus, namely, separators for the cleaning and purification of oil; retorts, namely, water distillation units and electric heaters for commercial use; ice machines and milk sterilizers; furnaces for industrial purposes; electrical boilers for household purposes; plumbing fittings namely, valves for controlling tank levels; electric lamps and lighting fixtures; and electric heat apparatus and equipment for household purposes, namely, electric blankets not for medical purposes, electric stoves, electric coffee percolators; and lighters primarily for lighting grills, fireplaces and candles ]