Brushes for vacuum cleaners; Central vacuum cleaning installations; Dust exhausting installations for cleaning purposes; Dust removing installations for cleaning purposes; Electric machines and apparatus for carpet shampooing; Replacement bags of paper for vacuum cleaners; Suction nozzles for vacuum cleaners; Vacuum cleaner attachments for disseminating perfumes and disinfectants; Vacuum cleaner bags; Vacuum cleaner hoses; Vacuum cleaners for household purposes; Dust filters for vacuum cleaners