Brushes for vacuum cleaners; Central vacuum cleaning installations; Dredging machines; Dust filters and bags for vacuum cleaners; Electric machines and apparatus for carpet shampooing; Electric vacuum cleaners and their components; Electric wax-polishing machines for industrial purposes; Electric window cleaning machines; Floor cleaning machines; Garbage disposal units; Mud dredging machines; Pigs for cleaning pipes; Self-propelled road sweeping machines; Suction nozzles for vacuum cleaners; ...