Drilldown: Patents

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Patents > Grant date: March 1909 & Assigned to: None

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None (3) · Léon Dufour (2) · Ottó Krausz (2)
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None (6) · Léon Dufour (2) · Ottó Krausz (2)
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None (21) · propulsion (11) · LTA (11) · navigation (6) · airplane (6) · propeller (5) · rudder (3) · frame (3) · dirigible (3) · design (3) · construction (2) · helicopter (2) · flapping (2) · control (2) · wings (2) · car (2) · balloon (2) · aerodynamics (2)
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None (10)
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Showing below up to 53 results in range #1 to #53.

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