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Patents > Grant date: 1908 & Citations from after 1930: None & Number of figures: 9-13

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propulsion (9) · airplane (5) · frame (5) · LTA (4) · Propellers (4) · navigation (4) · construction (3) · flapping (3) · Design (3) · aluminum (2) · airfoil (2) · stability (2) · sail (2) · propeller (2) · Whole (2) · rudder (2)
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