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Patents > National tech categories : USPC 244/153R or USPC 244/22 or USPC 244/45R & Cites these patents: None & Number of diagram pages: 2-3

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Inventors:
Julius Uherkovich de Uherkócz (2) · Alexander Graham Bell (2)
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None (6) · Alexander Graham Bell (2) · Julius Uherkovich de Uherkocz (2)
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Tech fields:
ornithopter (16) · frame (16) · flapping (15) · airplane (10) · propulsion (10) · airfoil (7) · propeller (7) · navigation (7) · stability (6) · kite (6) · hybrid (5) · None (5) · rudder (5) · wings (4) · takeoff (3) · parachute (3) · wheels (3)
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None (9)
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