1
Filtering materials [chemical, mineral, vegetable and other unprocessed materials]
11
Filters for industrial and household use; Filters for use in aquariums; Filters for use with swimming pools; Filters for drinking water; Filters for water purifiers; Filters for use with apparatus for water supply; Filters for industrial installations; Filters for cleaning gases [parts of household or industrial installations]; Filters for gases [household or industrial installations]; Filters for air extractor hoods; Filters for air purifiers; Parts and accessories for all the aforesaid goods, included in this class
21
Strainers for household purposes; Polishing materials for making shiny, except preparations, paper and stone, Especially Cotton for cleaning; Parts and accessories for all the aforesaid goods, included in this class
22
Padding and stuffing materials; Wadding for padding and stuffing upholstery; Wadding for filtering; Parts and accessories for all the aforesaid goods, included in this class
24
Filtering materials of textile; Filter fibers [textile]; Filters made of textile materials