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Patents > Grant date: March 1909

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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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Tech fields:
propulsion (14) · LTA (13) · airplane (13) · None (11) · navigation (8) · design (6) · propeller (6) · stability (5) · frame (5) · wings (5) · Aerodynamics (5) · dirigible (4) · lift (3) · rudder (3) · construction (3) · Sustentation (3)
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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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