Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes including microwave ovens; gas or electric ovens; toasters; electric hot plates; induction heating plates for cooking; roasters; rice cookers; electric fryers; electric SAKE (Japanese rice wine) warmers; coffee makers; electric jar pots; gas or electric cooking stoves; sinks; refrigerators; freezers; ice cube makers; refrigerating and/or freezing showcases; water coolers; water heaters; boilers; shower systems; water purifiers; prefabricated medical cold rooms for storage of drugs, specimens and/or blood and for experiments at hospital and/or medical institutions; sterilizers; refrigerators and/or freezers for medical and/or laboratory use; gas, kerosene and/or electric heaters; electric fans; electric ventilators; window fans; air conditioners; central heating/cooling systems; electric foot warmers; electric blankets; electric hot carpets; hair dryers; clothes driers for consumer use; dish driers for consumer use; lighting fixtures; emergency lamps; flash lights; electric bulbs; air purifiers; dynamo lighting sets and bulbs; toilet seats; solar energy systems for heating, cooling and hot water supplying; humidifiers; dehumidifiers; parts and fittings included in this class of the aforegoing goods