Drilldown: Patents

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Patents > Inventor country: US & Number of text pages: 4-6000000 & Number of claims: 6

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None (14) · airplane (12) · navigation (9) · frame (9) · propulsion (9) · control (7) · hybrid (7) · landing (7) · propeller (6) · design (6) · rudder (6) · LTA (6) · takeoff (6) · balloon (5) · propellers (4) · construction (4)
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