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Patents > Office: FR & Family year: 1918 & Number of figures: 2-7

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construction (8) · Design (5) · wings (4) · Airplane (4) · propulsion (4) · propellers (4) · ribs (3) · Parachutes (3) · frame (3) · structure (2) · Steering (2) · military (2) · fueling (2) · None (2)
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