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Patents > Publication date: September 1912 & First filing: Yes

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Airplane (10) · design (6) · safety (5) · Propulsion (4) · parachute (4) · fabric (4) · lift (3) · LTA (3) · metal (3) · wings (3) · subsystem (3) · sustentation (3) · frame (3)
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Showing below up to 31 results in range #1 to #31.

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