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Patents > Filing date: May 1912 & Application number : 444465D or None

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airplane (14) · Stability (8) · Aerodynamics (6) · design (6) · Frame (5) · propulsion (5) · Automatic stability (4) · Fuselage (4) · lift (3) · Landing (3) · wings (3) · LTA (3) · monoplane (3) · marine (3)
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