6
Valves, in particular flap valves, pressure valves, high-pressure valves, pressure-reducing valves, lateral valves, control valves, pipe seat valves, bellow-type valves, vacuum valves and cartridge valves of metal, not being parts of machines; Sliding valves or valves (included in class 6)
7
Valves, in particular flap valves, pressure valves, high-pressure valves, pressure-reducing valves, lateral valves, control valves, pipe seat valves, bellow-type valves, vacuum valves and cartridge valves, being parts of machines; Valves (included in class 7)
9
Control valves; Valves for measuring fluid flow; Parts and fittings for all of the above
11
Valves, in particular flap valves, pressure valves, high-pressure valves, pressure-reducing valves, lateral valves, control valves, pipe seat valves, bellow-type valves, vacuum valves and cartridge valves, being parts for heating and sanitary installations; Thermostatic valves, heating valves; Valves (included in class 11)
20
Valves made principally of non-metallic materials and valves for controlling the flow of liquid into and out of tanks and containers; Parts and fittings for all of the aforementioned goods