7
Pumps for water purification purposes; Apparatus for separation and recovery of liquids and particles in the field of industrial processes
11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, all the above apparatus excluding domestic appliances and any domestic termic product; Filters for drinking water; Purification installations for sewage; Flushing apparatus; Regulating and safety fittings for water apparatus; Oil-scrubbing apparatus; Water purifying apparatus; Water filtering apparatus; Water supply installations; Apparatus for process water purification in the production of foodstuffs; Purification apparatus for sewage; Apparatus for water separation; Water purification processes, dewatering of sludge; Apparatus for water purification in the oil, metal and mineral industry; Apparatus for the oxygenation of water; Apparatus for mixing polymers in relation to water purification; Dewatering apparatus; Apparatus for the removal of particles from liquids; Pumps for water purification purposes (parts of water purification installations); Apparatus for mechanical removal in sewers (coarse particle strainer), sewage systems and water supply installations; Sewage treatment plants; Stationary and mobile testing and sampling installations for water purification (parts of water purification installations)
37
Machinery (excluding domestic appliances and any domestic termic product) installation, maintenance and repair; Installation, maintenance, repair and servicing of pumps; Advisory services relating to the installation of pumps; Installation, maintenance, servicing and repair of equipment and instruments for water and effluent purification; Installation, maintenance, servicing and repair of equipment for separation and recovery in the field of industrial processes
42
Industrial analysis and development; Engineering; Water analysis; Water sampling