Drilldown: Patents

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Patents > Grant date: 1900 - 1909 & IPCs: IPC B64C23/00 & Number of text pages: 3-8

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airplane (7) · Propulsion (6) · hybrid (4) · Navigation (4) · Lift (4) · Ascension (3) · design (3) · helicopter (3) · None (2) · takeoff (2) · sustentation (2) · stability (2) · propellers (2) · Parachutes (2) · motors (2) · LTA (2) · wings (2) · dirigible (2) · Descent (2)
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Showing below up to 17 results in range #1 to #17.

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