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Patents > Filing date: 1913 & Family year: 1912 & Number of figures: 1-2

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Airplane (17) · Design (11) · Propellers (8) · Propulsion (6) · Frame (5) · Aerodynamics (5) · stability (4) · Fuselage (4) · Construction (4) · rudder (3) · automatic stability (3) · Motors (3) · None (3)
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Showing below up to 33 results in range #1 to #33.

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