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Patents > Office : CA or CU or GR & Number of diagram pages: 3-4

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airplane (10) · frame (7) · LTA (7) · propulsion (6) · design (5) · HTA (5) · navigation (5) · propeller (4) · None (4) · rudder (3) · airship (3) · marine (3) · stability (3) · takeoff (3) · biplane (3)
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