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Patents > Filing date: 1910 & CPCs: CPC B64C39/00 & Number of text pages: 3-10

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airplane (12) · design (8) · frame (6) · construction (5) · None (4) · stability (4) · sustentation (3) · whole (3) · aerodynamics (3) · fuselage (3) · lift (3) · navigation (2) · landing (2) · monoplane (2) · propeller (2)
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