Brushes for vacuum cleaners; Central vacuum cleaning installations; Cleaning appliances utilizing steam; Dust bags for vacuum cleaners; Dust exhausting installations for cleaning purposes; Dust filters and bags for vacuum cleaners; Dust removing installations for cleaning purposes; Electric machines and apparatus for carpet shampooing; Machines and apparatus for carpet shampooing, electric; Paper bags for vacuum cleaners; Robotic vacuum cleaners; Suction nozzles for vacuum cleaners; Vacuum cl...