[Class : 1] Filtering Compositions; Carbon For Filters; Filtering Materials [Unprocessed Plastics]; Filtering Materials [Chemical Preparations]; Filtering Materials [Mineral Substances]; Filtering Materials [Vegetable Substances; Filtering Media [Vegetable Substances]; Filtering Media [Mineral Substances]; Solid Gaseous Filtering Substances; Filter Aids For Liquid Purification; Filtering Media [Chemical] For Water; Filtering Materials Of Chemical Substances; Filtering Materials Of Mineral Substances; Filtering Materials Of Unprocessed Plastics; Filtering Materials Of Vegetable Substances; Filtering Preparations For The Beverage Industry; Mineral Substances For Use In Filtering; Filtering Preparations For The Beverages Industry; Filter Materials Of Ceramic [In Particulate Form]; Ceramic Particles For Use As Filtering Media; Glass Granules For Use In Swimming Pool Filters; Ceramic Particles For Use As A Filtering Medium; Unprocessed Plastics In The Nature Of Filtering Materials; Filtering Materials [Chemical, Mineral, Vegetable And Unprocessed Plastics; Carbon For Filters For Removing Organic Contaminants From Water; Filtering Materials [Chemical, Mineral, Vegetable And Other Unprocessed Materials]; Ceramic Materials In Particulate Form For Use As Filtering Media; Filtering Media (Ceramic Materials In Particulate Form, For Use As ); Ceramic Materials In Particulate Form For Use As Filtering Preparations; Ceramic Materials In Particulate Form For Use As Filtering Materials; Ceramic Materials In Particulate Form, For Use As Filtering Media.