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Patents > Year granted: 1909 & Publication date: November 1909

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airplane (12) · LTA (11) · Propellers (9) · Design (9) · Frame (9) · stability (7) · Lift (5) · Control (5) · Construction (5) · Propulsion (5) · balloon (4) · aerostat (4) · Balloons (3) · gas (3) · steering (3) · ballonet (3) · airship (3) · wings (3)
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