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Patents > Office : BE or CA or CU or IT & Number of figures: 1-3

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airplane (11) · propellers (6) · hybrid (6) · LTA (5) · design (4) · stability (4) · propulsion (4) · rudder (3) · safety (2) · propeller (2) · marine (2) · frame (2) · None (2) · balloon (2) · aerodynamics (2)
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Showing below up to 26 results in range #1 to #26.

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