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Patents > Office : CA or DE & Inventor country : CA or None & Number of text pages: 3-70

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airplane (9) · frame (7) · design (4) · propeller (4) · stability (3) · hybrid (3) · propulsion (3) · navigation (3) · None (3) · propellers (2) · construction (2) · LTA (2) · piloting (2) · safety (2) · whole (2) · subsystem (2) · rudder (2)
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