Central vacuum cleaning installations; Cleaning appliances utilizing steam; Dust exhausting installations for cleaning purposes; Dust removing installations for cleaning purposes; Electric machines and apparatus for carpet shampooing; Electric parquet wax-polishers; Electric wax-polishing machines for household purposes; Electric wax-polishing machines for industrial purposes; High pressure washers; Suction nozzles for vacuum cleaners; Vacuum cleaner attachments for disseminating perfumes and...