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Patents > Inventor country : CA or RO & Filing date: 1900 - 1999 & Number of diagram pages: 2

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airplane (8) · frame (5) · wings (3) · stability (3) · propeller (3) · navigation (3) · marine (3) · control (3) · sustentation (2) · rudder (2) · propulsion (2) · propellers (2) · hybrid (2) · None (2) · construction (2) · design (2)
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