Drilldown: Patents

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Patents > Grant date: March 1913 & Patent agent : Charles Dony or None

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None (3)
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None (19) · airplane (9) · Design (6) · frame (5) · Construction (4) · stability (4) · LTA (4) · subsystem (3) · parachute (3) · wings (3) · hybrid (2) · aerodynamics (2) · whole (2) · propellers (2) · Airship (2) · lift (2) · human-powered (2) · balloon (2) · landing (2)
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Showing below up to 45 results in range #1 to #45.

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