1
Filtering materials [chemical, mineral, vegetable and other unprocessed materials]; Filtering materials of vegetable substances; Filtering media [mineral substances]; Filtering materials [chemical substances]; Filter aids for liquid purification
7
Filters being parts of machines or engines; Filters for machines; Filter housings being parts of engines; Filter housings being parts of machines; Portable filtration units [machines]
11
Lighting apparatus, Unit heaters, Steam generating apparatus, Refrigerating apparatus, Drying installations, Air-conditioning apparatus, Apparatus for ventilating, Heat recovery apparatus, Air filtration apparatus and Apparatus for water supply and sanitary purposes; Air filters, parts and accessories of the aforesaid apparatus and installations; Fuel economisers; Gas cleaners and purifiers; Gas scrubbers [parts of gas installations]; Nuclear reactors; Ultraviolet ray lamps, not for medical purposes; Filters for industrial and household use; Filters for waste gas purification; Filters for cleaning gases [parts of household or industrial installations]; Filters for gas extractors; Filters for industrial installations; Filters for air purifiers; Filters for use with apparatus for ventilating; Filters for fume extractors; Filters for cleaning air; Filters for use with apparatus for air conditioning; Other than apparatus for use in the kitchen
17
Sealing foils and Semi-processed synthetic filter materials; Filtering materials of semi-processed foams of plastic; Filtering materials of semi-processed films of plastic; Mineral wool for use in the manufacture of filter media
37
Building construction, including the installation of lighting, heating, steam generating, cooking, refrigerating, drying, air conditioning, ventilating, heat recovery, air filtering and water supply apparatus and of sanitary installations; Repair of apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, air-conditioning, ventilating, heat recovery, air filtering and water supply and sanitary purposes, air filters and parts and accessories for the aforesaid apparatus and installations
40
The custom manufacture of apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, air-conditioning, ventilating, heat recovery, air filtering and water supply and sanitary purposes; Filtration of liquids; Filtration of gases
42
Administration, control and granting of licence rights; Building and construction planning and consultancy; Engineering services; Providing of expert opinion; Technical consultancy and providing of expertise; Design, development, planning, project management and construction (engineering services) of industrial and machine installations, lighting, heating, steam generating, cooking, refrigerating, drying, air conditioning, ventilating, heat recovery, air filtering and water supply apparatus and of sanitary installations, air filters,; Material testing; Services of a research and development office; Creation of new products; Data programming for others; Consultancy relating to filtration technology; All the aforesaid services for others
45
Management, control and granting of licence rights