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Patents > Grant date: 1900 - 1909 & CPCs: CPC B64C23/005 & Number of figures: 5-30

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Airplane (16) · Propulsion (11) · Navigation (10) · Hybrid (5) · Takeoff (5) · stability (5) · propeller (5) · LTA (5) · Helicopter (4) · lift (4) · frame (4) · Design (3) · Ascension (3) · motors (3)
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