Drilldown: Patents

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Patents > Inventor location : Berlin or Pittsburgh & Grant date: 1900 - 1999

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LTA (10) · airplane (9) · propeller (7) · Design (5) · airship (5) · balloon (5) · Frame (5) · wood (4) · propellers (4) · wheels (3) · subsystem (3) · propulsion (3) · navigation (3) · flapping (3) · None (3) · Aerodynamics (3) · airfoil (3)
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