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Patents > Inventor country: CA & First filing: Yes & Number of diagram pages: 2-4

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airplane (5) · frame (5) · stability (5) · None (4) · navigation (4) · propulsion (4) · rudder (4) · marine (3) · airfoil (2) · LTA (2) · dirigible (2) · flying machine (2) · propeller (2) · heavier-than-air (2)
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