Brushes for vacuum cleaners; Central vacuum cleaning installations; Cleaning appliances utilizing steam; Clothes washing machines; Dust exhausting installations for cleaning purposes; Dust removing installations for cleaning purposes; Electric sweepers; Electric wax-polishing machines for household purposes; High pressure washers; Machines and apparatus for carpet shampooing, electric; Parquet wax-polishers, electric; Pigs for cleaning pipes; Road sweeping machines, self-propelled; Sewage pul...