1
Activated carbons; Biochemical catalysts; Carbon for filters; Filtering materials in the form of chemicals; Filtering materials in the form of unprocessed plastics; Filtering materials in the form of mineral substances; Filtering materials (vegetable substances); All of the aforesaid goods being other than those for use in motor vehicles and parts therefor
7
Cartridges for filtering machines; Filters as parts of machines, motors or engines; Filters for cleaning cooling air, for engines, In particular air filters for internal combustion engines; All of the aforesaid goods being other than those for use in motor vehicles and parts therefor
11
Purification installations for sewage; Filters (parts of domestic or industrial facilities); Aquarium filtration apparatus; Air filters for air conditioning; Filter installations; Air purifying apparatus and machines, in particular filters being parts for domestic or industrial installations; Filters for air-conditioning/ventilating installations; Equipment protective filters; Exhaust air filters; Filters for internal combustion engines or motors; Particulate air filters; Clean room filters; All of the aforesaid goods being other than those for use in motor vehicles and parts therefor
17
Filtering materials (semi-processed foams or films of plastic); Plastics, Partly processed, In particular carrier materials for biological water purification of plastic or foam; Absorbers, absorbers and catalytic converters, all of the aforesaid goods based on plastic or foam; All of the aforesaid goods being other than those for use in motor vehicles and parts therefor