Drilldown: Patents

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Patents > Related to aircraft: Yes & First filing: No & Number of text pages: 8-12

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airplane (15) · stability (12) · design (9) · automatic stability (8) · frame (6) · construction (6) · propulsion (6) · aerodynamics (5) · propellers (5) · whole (4) · hybrid (3) · helicopter (3) · gyroscope (3) · parachutes (3) · lift (3) · petroleum (3) · Safety (3) · bamboo (3)
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