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Patents > CPCs : CPC B64C23/005 or CPC B64C2700/6295 & Number of claims: 10-13

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None (18) · airplane (11) · frame (9) · stability (8) · propeller (8) · navigation (6) · helicopter (5) · Hybrid (5) · rudder (4) · wheels (4) · takeoff (4) · design (3) · parachute (3) · airfoil (3) · Propellers (3)
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