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Patents > IPCs : IPC B64C11/00 or IPC B64C33/00 & Number of diagram pages: 3-20000000

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Office:
Inventors:
Alfred E. Wunderlich (2) · Julius Uherkovich de Uherkócz (2) · Richard A. Engler (2)
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Applicant person:
Alfred E. Wunderlich (2) · Julius Uherkovich de Uherkócz (2) · Richard A. Engler (2)
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Applicant is inventor:
Tech fields:
flapping (12) · ornithopter (11) · propulsion (10) · frame (9) · design (7) · airplane (7) · wings (6) · stability (6) · propellers (6) · propeller (5) · navigation (5) · lift (4) · hybrid (3) · sustentation (3) · airship (3) · HTA (3)
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None (4)
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Citations from after 1930:
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