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Patents > Grant date: November 1913 & First filing: Yes

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None (10) · stability (9) · Airplane (7) · automatic stability (5) · design (4) · wings (4) · helicopter (2) · sustentation (2) · hydroplane (2) · HTA (2) · frame (2) · incidence (2) · propellers (2) · control (2) · construction (2) · Lift (2)
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Showing below up to 36 results in range #1 to #36.

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