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Patents > Year filed: 1913 & IPCs : IPC B64C1/00 or IPC B64C3/38 & First filing: No

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stability (21) · Airplane (17) · automatic stability (9) · design (7) · aerodynamics (6) · construction (5) · fuselage (4) · Frame (4) · Wings (3) · Equilibrium (3) · lift (3) · control (3) · rudder (3)
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