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Patents > IPCs: IPC B64C33/00 & Number of claims: 3-10

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Office:
Inventors:
Franz Xaver Wels (3) · Julius Uherkovich de Uherkócz (2) · Henry Mesinger (2)
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Applicant person:
Franz Xaver Wels (3) · Henry Mesinger (2) · Julius Uherkovich de Uherkócz (2)
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Tech fields:
flapping (24) · ornithopter (14) · propulsion (12) · frame (12) · hybrid (9) · wings (8) · navigation (8) · airplane (8) · human-powered (8) · stability (7) · None (7) · design (6) · glider (4) · propeller (4) · airfoil (3)
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None (4)
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Citations from after 1930:
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