7
Filters and membranes as parts of machines; filters and membranes as parts of engines; filters and membranes as parts of motors; parts of machines made of plastics; parts of engines made of plastics; parts of motors made of plastics; oil feeders for fuser roller of copiers; cartridges for filtering machines; Valves being parts of machines
9
Precision measuring apparatus; filters and membranes as parts of precision measuring apparatus; laboratory experimental machines and apparatus; filters and membranes as parts of laboratory experimental machines and apparatus; measuring or testing machines and instruments; filters and membranes as parts of measuring or testing machines and instruments; electric wires and cables; waterproof filters and membranes adapted for audio and/or visual electronic devices (mainly for mobile telephones); tamper-proof filters and membranes adapted for audio and/or electronic devices (mainly for mobile telephones); laboratory filters; cable covers [conduits]
11
Filters and membranes as parts of household or industrial installations; water filtering apparatus; filters and membranes as parts of water filtering apparatus; air filtering apparatus; air filters; air-conditioning, air cooling and ventilation apparatus and instruments
17
Polymeric membranes; filtering and membrane materials (semi-processed foams or films of plastic); plastic substances, semi-processed; plastics in the form of films, sheets, blocks, boards, tapes, tubes, pipes, rods and grains; plastic fiber sheets; plastic laminated sheets; insulators; insulating materials, in particular insulating tape, insulating tube, insulating paper; insulators for electric mains; insulating materials for electric wires and cables; \ insulating materials for insulation against heat; sealing materials; waterproofing compositions (not included in other classes); insulating water proofing membranes; porous plastic materials; composite materials; water-repellent materials (not included in other classes); gaskets