Drilldown: Patents

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Patents > Number of text pages: 11-16 & Number of diagram pages: 3-4

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airplane (8) · None (5) · frame (5) · stability (4) · design (4) · construction (3) · gyroscope (3) · HTA (3) · wings (2) · equilibrium (2) · propulsion (2) · propellers (2) · navigation (2) · helicopter (2) · fuselage (2) · lift (2) · electricity (2) · automatic stability (2) · biplane (2)
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