Automobile engine valve covers; Automotive intake manifolds; Electric door openers and closers; Exhaust system temperature, pressure, flow sensors being parts of internal combustion engines; Gas diverters consisting of a pump, storage and refilling tank, pre-heater, vaporizer, recuperator, condenser and valves; Hydraulic pumps and motors for hydrostatic systems, comprised of pumps, motors, valves, switches, sensors and electronic controls, for hydraulic drives and force transmission in machin...