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Patents > Office : FR or HU & Number of claims: 12-15

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airplane (16) · frame (7) · Propellers (6) · Whole (5) · Stability (4) · Propulsion (4) · hybrid (4) · Design (4) · aerodynamics (3) · flapping (3) · motors (3) · automatic stability (3) · fuselage (3) · Construction (3)
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