Drilldown: Patents

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Patents > Year granted: 1920 & Number of diagram pages: 2-7 & Number of figures: 4-6

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design (8) · airplane (7) · construction (6) · wings (5) · propellers (5) · frame (4) · None (4) · whole (3) · fuselage (2) · aerodynamics (2) · blades (2) · VTOL (2) · lift (2) · LTA (2) · stability (2) · safety (2)
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