1) Class: 11
Description: plumbing installations, bath plumbing fixtures, sanitary and bathroom installations and plumbing installations, bath plumbing fixtures, bath fittings, water-pipes for sanitary installations, heating installations [water], water heating installations, water conditioning systems, water conditioning apparatus, bath installations, bath plumbing fixtures, bath fittings, water conditioning installations, bath installations, bath fittings, bath plumbing fixtures, pipes [parts of sanitary installations], faucet filters [plumbing fittings], water conditioning equipment, shower sprayers [plumbing fittings], bath plumbing fixtures, bath fittings, bath installations, flexible pipes being parts of wash-hand basin plumbing installations, flexible pipes being parts of bath plumbing installations, filters for faucets [plumbing fittings], water conditioners, bath plumbing fixtures, bath installations, bath fittings, pipes being parts of sanitary installations, flexible pipes being parts of shower plumbing installations, water heaters, bathroom installations, water supply installations, water purifying apparatus for household use, sanitary and bathroom installations, water purifying apparatus for household purposes, flushing apparatus for water-closets, water heaters for household use, shower drains [sanitary installations], water heaters for household purposes, boiler pipes for heating installations, simple water-closets, pipes for heating boilers, water conditioning units, cisterns for water-closets, flexible pipes being parts of basin plumbing installations, shower hoses, water flushing installations for water-closets, industrial apparatus for purifying water, water filtration apparatus for domestic use, flushing cisterns for water-closets, electric water heating apparatus, regulating accessories for water or gas apparatus and pipes, cooling installations for water, water heater with air heat pump, apparatus for purifying water, water-closets, water cooling installations, water heaters with air heat pump, water intake apparatus, water purifying apparatus and machines, installations for the cooling of water, installations for purifying water, apparatus and installations for purifying industrial water, water purifiers for household use, water purifiers, gas water heaters for household purposes, heating apparatus and installations, flexible pipes being parts of sink plumbing installations, flushing apparatus for water closets, water purifying apparatus, toilet [water-closet] cisterns, water conduits installations, bath installations, apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes, shower installations, gas water heaters for household use, heating installations for fluids, water-closet cisterns, cisterns for water closets, water closets, domestic water filtering apparatus, installations for cooling water, heating installations, water purifiers for household purposes, flushing cisterns for water closets, water flushing installations, toilets [water-closets], water flushing installations for water closets, water heaters with air heat pumps, apparatus for purifying industrial water, water distribution installations, appliances for heating, water boilers, electric, industrial water treatment apparatus and installations, refrigerating apparatus and appliances, heaters for baths, cooking apparatus and appliances, bath installations, bath fittings, regulating and safety accessories for water apparatus, water bed heaters, water filtering apparatus, hot water heating installations, water heaters for industrial purposes, cisterns for toilets [water-closets], simple toilets [water-closets], installations for steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary installations, water heaters for industrial use, heat regulators [valves] being parts of heating installations, water filtering apparatus for domestic use, simple built-in toilets [water-closets], industrial-water purifying apparatus, simple water closets, apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, water filtration and purification apparatus, room ventilators [supply dampers], gas-fired water heaters for household use, water purifying apparatus for industrial purposes, bathroom sinks, watering installations, automatic, shower bath installations, water closet cisterns, heat sinks for use in ventilating apparatus, industrial water-purifying apparatus, water flushing installations for toilets [water-closets], flushing apparatus for toilets [water-closets], washers for water taps, heat sinks for use in heating apparatus, apparatus and installations for heating, cooling, steam generating, drying and ventilating, cooking installations and apparatus, stoves [heating apparatus], safety accessories for water or gas apparatus and pipes, heating apparatus, gas-fired water heaters for household purposes, sanitary installations and apparatus, shower fittings, flushing cisterns for toilets [water-closets], air heating apparatus for residential use, apparatus for purifying tap water, filters for use with apparatus for water supply, water purifying apparatus for industrial use, waste pipes for bathtubs, cooling appliances and installations, water distribution apparatus, simple built-in water-closets, gas water heaters, air conditioning apparatus for residences, water purifiers, electric, water purification apparatus, storage water heaters, electrical household apparatus for heating food, water purification and filtration apparatus, cisterns for toilets, mixer faucets for water pipes, showers, bath boilers
2) Class: 37
Description: plumbing, installation of plumbing, maintenance of plumbing, plumbing services, repair of plumbing, plumbing installation, maintenance and repair, installation of plumbing systems, plumbing and glazing services, advisory services relating to the installation of plumbing, plumbing maintenance advisory services, advisory services relating to the maintenance of plumbing, plumbing installation advisory services, plumbing repair advisory services, advisory services relating to the repair of plumbing, maintenance of apparatus for purifying water, repair of water supply apparatus, installation, maintenance and repair of water supply apparatus, maintenance of water purifying apparatus, routine servicing of heating apparatus, installation, maintenance and repair of gas, electricity and water supply apparatus, installation of water pipes, installation of water supply apparatus, repair of apparatus for purifying water, installation of equipment and apparatus for gas and water supply, repair or maintenance of water purifying apparatus, installation and repair of bathroom heating devices, routine servicing of ventilating apparatus, emergency servicing of water supply apparatus, repair of water purifying apparatus, repair of water supply installations, repair of gas and water installations, installation of apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, cleaning of bathrooms, repair of apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, installation and repair of heaters for baths, toilet [water-closet] installation and repair, installation of apparatus for sanitation, installation and repair of toilets [water-closets], maintenance and repair services of public utilities in buildings, installation of pipes, repair or maintenance of gas water heaters, maintenance of bathtubs, installation of heating, lighting and cooking apparatus, repair of energy supply installations and of apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, routine servicing of refrigerating apparatus, installation and repair of water closets, installation of apparatus for heating, water closet installation and repair, services for the washing of buildings, routine servicing of air-conditioning apparatus, installation of utilities in construction sites, installation and repair of heating, installation, maintenance and repair of heating apparatus, shower installation and repair, heating installation and repair, routine servicing of drying apparatus, repair and maintenance of heating apparatus, repair or maintenance of water purifying apparatus and providing information relating thereto, maintenance and repair of heating installations, building washing, maintenance and repair of heating apparatus, installation, maintenance and repair of household apparatus and appliances, repair or maintenance of water purifying apparatus and provision of information relating thereto