Upholstery cleaning and washing machines; car cleaning and washing machines; robotic car cleaning machines; robotic upholstery cleaning machines; high pressure washers; liquid detergent feeders being parts of cleaning machines; rotary nozzles for use with high pressure water washing machines; spray nozzles for attachment to pressure washing machines; electric upholstery shampoo applicators; electric machines for wax-polishing; electric hand held vacuum cleaners; electric steam cleaning machin...