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Patents > Inventor country : PY or SE

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Propulsion (12) · None (11) · Wings (11) · flapping (9) · design (8) · Frame (8) · Airplane (7) · stability (6) · marine (6) · Construction (5) · LTA (4) · Aerodynamics (4) · propeller (4) · wing (3) · Lift (3) · navigation (3) · ornithopter (3) · balloon (3) · heavier-than-air (3) · paddles (3)
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Showing below up to 54 results in range #1 to #54.

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