Drilldown: Patents

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Patents > Application number: None & National tech categories : DE 77h.6 or GB 123 aero steam generators

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None (7) · Christian Lorenzen (5) · Hiram Stevens Maxim (3) · Hellmuth Hirth (2) · Joseph Hofmann (2) · Lucien Chauvière (2) · Jakob Haw (2)
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propeller (40) · propulsion (12) · subsystem (5) · Airplane (4) · motor (4) · helicopter (4) · steam (3) · navigation (3) · metal (3) · marine (3) · None (2) · frame (2) · Propellers (2) · parachute (2) · wood (2) · barometer (2)
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