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INSTALLATIONS, APPARATUS AND INSTRUMENTS FOR ALL HEATING, STEAM GENERATING, DRYING, COOKING, VENTILATING, WATER SUPPLY AND SANITARY PURPOSES, namely, HEAT PUMPS, HEATING ELEMENTS; AIR CONDITIONING, AIR COOLING, AND VENTILATION APPARATUS AND INSTRUMENTS; HEATING SYSTEMS FOR RESIDENTIAL AND COMMERCIAL BUILDINGS COMPRISED OF BOILERS, VALVES, PIPES, MANIFOLDS, SOLAR PANELS, CONTROL PANELS; SWITCHES AND ELECTRICAL WIRE, ALL SOLD AS A UNIT; SOLAR COLLECTORS; SOLAR ENERGY BASED COOLING APPARATUS; SOLAR ENERGY RECEIVERS; SOLAR HEAT COLLECTION PANELS; SOLAR THERMAL AIR SYSTEMS FOR HEATING PURPOSES; SOLAR THERMAL INSTALLATIONS, NAMELY, SOLAR THERMAL MODULES; SOLAR WATER HEATERS; SOLAR LAMPS; THERMAL STORAGE APPARATUS, namely, SOLAR COLLECTORS; BOILERS FOR HEATING INSTALLATIONS; WATER HEATERS AND REPLACEMENT PARTS AND FITTINGS THEREFORE; ELECTRICAL HEATING ELEMENTS FOR DOMESTIC AND INDUSTRIAL PURPOSES, ELECTRICAL RADIANT HEATING PLATES AND ELECTRICAL CERAMIC HEATERS, ALL FOR COOKERS; IMMERSION HEATERS AND HEATING ELEMENTS; SHOWERS; ELECTRIC SHOWERS; ELECTRIC INSTANTANEOUS AND PUMPED ELECTRIC SHOWERS, POWER SHOWERS; PLUMBING FITTINGS, namely, SHOWER MIXERS; WATER HEATERS, SPRAY HEADS AND MIXERS ALL BEING PLUMBING FITTINGS FOR SHOWER BATHS; REPLACEMENT PARTS AND FITTINGS IN THIS CLASS FOR ALL THE FORESAID GOODS