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Patents > National tech categories : FR 10.1 or USPC 244/22 & First filing: No

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frame (5) · landing (4) · flapping (4) · design (4) · construction (3) · propulsion (3) · Wheels (3) · None (2) · ornithopter (2) · Propellers (2) · Aerodynamics (2) · rudder (2) · hydrodynamics (2) · hybrid (2) · propeller (2) · Subsystem (2) · suspension (2)
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