7 Generators of electricity and emergency electricity, in particular for aircraft; Fuel cell energy converters, namely, electric power generators; electric power generators based on integrated fuel cell hybrid energy converters; Parts of machines, namely, Heat exchangers and conduits for fluid and heat transfer for integrated fuel cell power generation systems and subsystems, namely, power generators; Integrated hydrogen-fuel systems comprised of heat exchangers being parts of aircraft engines, containers, valves, pumps and lines, namely, parts of machines, for propulsion systems for aircraft; Hydrogen dispensing pumps for filling stations; Parts for electrolysis machines for generating hydrogen, namely, separators and membranes for generators, circulation frames for generators, baffle plates and containers for generators, rectifier droplet separators for generators, and gas-liquid separators; Parts of machines, namely, Gas lines for discharging and discharging gas mixtures, hydrogen and water from drives for aircraft