Drilldown: Patents

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Patents > Inventor country: AH & Granted: Yes & Number of text pages: 3-20000000

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propulsion (5) · Airplane (4) · propellers (4) · marine (3) · Design (3) · Aerodynamics (2) · frame (2) · propeller (2) · aerostat (2) · LTA (2) · gas (2) · flapping (2) · Whole (2) · takeoff (2) · balloon (2) · Airship (2) · airfoil (2)
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