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Patents > Applicant type: INDIV & IPCs : IPC B64C33/00 or IPC B64C35/00 & Number of diagram pages: 3-4

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ornithopter (8) · flapping (8) · airplane (7) · frame (6) · construction (4) · stability (3) · propulsion (3) · design (3) · hydroaeroplane (3) · airfoil (2) · human-powered (2) · takeoff (2) · ornithopters (2) · navigation (2) · hybrid (2) · wings (2) · fuselage (2) · airship (2)
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