Carburetors; Cleaning appliances utilizing steam; Cooling radiators for motors and engines; Electric hand-held drills; Electric vacuum cleaners; Electric wax-polishing machines for household purposes; Electrically-powered steam cleaning device comprising a hose and nozzle and a vapor-producing chamber that is attached to a water source; Gas diverters consisting of a pump, storage and refilling tank, pre-heater, vaporizer, recuperator, condenser and valves; Lifting installations for the transp...