Drilldown: Patents

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Patents > Number of text pages: 7-30 & Number of claims: 11

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stability (7) · airplane (6) · design (5) · propellers (4) · automatic stability (4) · frame (4) · wings (3) · navigation (3) · sustentation (3) · propulsion (3) · control (3) · fuselage (2) · construction (2) · propeller (2) · lift (2) · LTA (2) · Helicopter (2)
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