Electrical water pumps for swimming pools; Automatic swimming pool cleaners and parts therefor; Dust exhausting installations for cleaning purposes; Vacuum cleaner attachments for disseminating perfumes and disinfectants; Swimming pool sweepers; Filters being parts of water treatment machines; Electric pumps for swimming pools; Swimming pool vacuum cleaners; High pressure washers; Cleaning appliances utilizing steam; Waste disposal units; Dust removing installations for cleaning purposes; Rob...