Drilldown: Patents

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Patents > Year filed: 1918 & Number of text pages: 4-20 & Number of claims: 8-12

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airplane (6) · None (5) · frame (4) · design (4) · aerodynamics (3) · subsystem (3) · propellers (3) · wings (2) · stays (2) · ornithopter (2) · navigation (2) · materials (2) · aerial propellers (2) · fuselage (2) · LTA (2) · construction (2)
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