11 APPARATUS FOR LIGHTING PURPOSES, NAMELY, LIGHTING FIXTURES, LIGHTING TRACKS, ARC LAMPS, LIGHTING TUBES, LANDSCAPE LIGHTING INSTALLATIONS; APPARATUS FOR HEATING PURPOSES, NAMELY, ELECTRIC HEATING FANS, HEATING FURNACES, HOT-AIR SPACE HEATING APPARATUS, HOT-WATER SPACE HEATING APPARATUS; APPARATUS FOR STEAM GENERATING PURPOSES, NAMELY, STEAM GENERATING INSTALLATIONS, STEAM GENERATORS, STEAM VALVES, STEAM RADIATORS FOR HEATING BUILDINGS; APPARATUS FOR COOKING PURPOSES, NAMELY, COOKTOPS, COOKING RANGES, DOMESTIC AND COMMERCIAL COOKING OVENS, MICROWAVE COOKING OVENS; APPARATUS FOR REFRIGERATING PURPOSES, NAMELY, REFRIGERATING MACHINES, REFRIGERATORS; APPARATUS FOR DRYING PURPOSES, NAMELY, CLOTHES DRYERS, HAIR DRYERS, ELECTRIC HOT AIR HAND DRYERS; APPARATUS FOR VENTILATING PURPOSES, NAMELY, VENTILATING EXHAUST FANS, VENTILATING FANS FOR COMMERCIAL AND INDUSTRIAL USE, VENTILATING LOUVERS, VENTILATION HOODS; APPARATUS FOR WATER SUPPLY AND SANITARY PURPOSES, NAMELY, TOILETS, SINKS, BATH TUBS AND PIPES BEING PARTS OF SANITARY FACILITIES, WATER FILTERS, FILTERS FOR DECALCIFYING WATER