7 Back pressure valves as parts of machines; Dynamos; Hydraulic pumps; Hydraulic pumps and motors for hydrostatic systems, comprised of pumps, motors, valves, switches, sensors and electronic controls, for hydraulic drives and force transmission in machines, machine tools, grinding and food processing machines and in off-road-vehicles; Hydraulic valve actuators; Pumps as parts of machines, motors and engines; Starters for motors and engines; Stators being parts of machines; Vacuum pumps; Vacuum pumps; Valves as machine components