7 Machines for the assembly of engines and engine parts; machines for the assembly of motor vehicles; metalworking machines in the nature of metal forming machines, grinding machines for the treatment of metal and metal sawing machines and metalworking machine tools; combined heat and power plant machine comprised of combustion engines with coupled heat exchanger for the generation of electricity and heat as complete unit ; engines not for land vehicles; machine couplings and power transmission components, except for land vehicles; engines and combustion engines and their components for the propulsion of ships, airships and stationary and mobile propulsion engines, especially combustion piston engines, diesel engines, engines driven by biogenous fuel, hybrid engines and gas engines as new, partial or replacement engines as well as units with such combustion engines and electricity generators or pumps or compressors, except for land vehicles; engine component parts for the propulsion of railway vehicles; new, replacement, reconditioned and repaired parts of the combustion engines, except for land vehicles; components as parts of combustion engines, except for land vehicles, especially for construction machinery, mining machinery, agricultural and forestry machinery and machinery for industrial applications, all driven by combustion piston engines; equipment for gas exchange in combustion engines, namely, combustion piston engines and combustion piston engine component parts not for land vehicles in the nature of mechanically driven chargers, exhaust gas turbochargers, heat exchangers, air filters, air ducts and fittings, exhaust air ducts, and silencers; fuel pumps for land vehicles and vacuum pump drives as well as fuel filters, component parts for machine engines in the nature of fuel pipes and fittings, fuel tanks, injection pumps, injection nozzles and injection appliances in the nature of a combination of pump and nozzle for combustion engines, namely, combustion piston engines for machines; valves being engine parts for introducing fuel-air mixtures into the combustion chambers of internal combustion engines; compressed air motor starters as well as electric and gas compressors; compressor drives for machines; component of air compressor in the nature of compressed air tanks, compressed air pipes; fittings for combustion engines, namely, combustion piston engines not for land vehicles; electrical equipment and instruments for combustion piston engine components in the nature of alternators, current generators and electrical starter motors; power transmission for machines and their components in connection with combustion engines, namely, combustion piston engines, also for the propulsion of stationary and mobile processing machines, especially for construction machinery, mining machinery, agricultural and forestry machinery and machinery for industrial applications, and mechanical gearboxes other than for land machines with permanent or switchable transmission, reverse gearing, hydrodynamic, hydrostatic and electrical gearboxes as well as combinations of such gearboxes, mechanical, hydrodynamic and electrical couplings, switchable, non-switchable and flexible couplings, articulated couplings, drive shafts, and drive axles; mechanical and hydrodynamic brakes for combustion engines for machines, except for land machines, namely, for machine combustion piston engines; power generation units, consisting of combustion engines not for land vehicles, namely, combustion piston engines, and gas-operated power generators; pump units composed of combustion piston engines not for land vehicles, and fluid pumps; compressor units consisting of combustion engines not for land vehicles, namely, combustion piston engines, and air or gas compressors; drive units for deep drilling systems consisting of combustion piston engines, and power transmission for machines; lubricating machines featuring oil pumps and pump drives, oil coolers, oil filters, oil centrifuges, oil pipes and fittings; cooling appliances in the nature of cooling radiators for motors and engines for dissipating heat losses; and heating appliances in the nature of heat exchanger adapted for engines not for land vehicles, and for pre-heating of combustion engines not for land vehicles, namely, combustion piston engines, for power transmission engines being parts of machines; heat exchangers being parts of machines, heating appliances adapted for engines in the nature of heat sinks for use in machines and diesel-engine heating plugs; fans for machine engines, fan electric motors; components of combustion piston engines for the propulsion of land vehicles, railway vehicles and military vehicles, namely, heads, coils, manifolds and particulate filters; parts of appliances for power transmission in connection with combustion piston engines, namely, mechanical gearboxes other than for land vehicles, with permanent or switchable transmission, reverse gearing, hydrodynamic, hydrostatic and electrical gearboxes as well as combinations of such gearboxes; working units for deep drilling systems consisting of combustion engines, namely, combustion piston engines, and power transmissions; drive units for deep drilling systems consisting of combustion engines, namely, combustion piston engines, and power transmissions; cooling appliances in the nature of cooling radiators for motors and engines for dissipating heat losses for combustion engines, as engine or motor components; heat exchangers being parts of engines not for land vehicles; vent valves in the nature of emission reduction units for engines and motors, namely, EGR and PCV valves and their component drives; pumps as engine and motor components and their component drives; refrigerant filters for engines and motors; fittings for engine boilers in the nature of flues for engine boilers