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Cooking stoves: Wood and coal stoves. Gas stoves. Oil stoves. Electric stoves. Alcohol, acetylene, and canned heat. Fireless and steam cookers -- Heating devices: Warm-air furnaces. Hot-water system of heating. Steam-heating systems. Fireplaces and heating stoves. Gas, electric and kerosene heaters -- Lighting devices: Electric lights. Gas light. Kerosene lamps. Alcohol and gasoline lamps -- Cooling devices: Refrigerators. Iceless refrigerators; water coolers. Fans and ventilators -- Water supply and sewage: Pumps and water filters. Pressure tanks; plumbing fixtures. Cesspools, septic tanks and city sewer systems. Water closets -- Laundry equipment: Washing machines. Wringers. Mangles and irons -- House-cleaning equipment: Vacuum cleaners and cleaning tools -- Devices for preparation and conservation of food: Pots, pans and other devices. Parers, seeders, grinders, slicers, etc. Mixers, beaters and churns; coffee pots. Dish-washers, canners and dryers. Separators and emulsifiers -- Sundry devices: Dumbwaiters and other house furnishings. Sewing machines. Automobiles. Lawn mowers; incubators. Typewriters -- Motors, fuels and gas plants: Treadles and water motors. Engines; motors and batteries; fuels. Gas plants -- Measuring devices: Scales for weighing. Devices for measuring volume. Gas, water and electric meters. Thermometers and thermostats. Hydrometers and barometers.
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