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Patents > National tech categories: None & CPCs : CPC B64C33/00 or CPC F03D11/00

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Office:
Inventors:
None (31) · Franz Xaver Wels (2) · Richard A. Engler (2)
Inventor country:
Applicant person:
None (32) · Richard A. Engler (2) · Franz Xaver Wels (2)
Applicant firm:
Applicant type:
Applicant is inventor:
Tech fields:
None (54) · Ornithopter (9) · flapping (8) · wings (8) · propulsion (7) · design (6) · hybrid (5) · lift (3) · frame (3) · stability (3) · human-powered (3) · glider (3) · HTA (3) · sustentation (2) · airship (2) · aerodynamics (2) · safety (2) · navigation (2) · airplane (2) · rudder (2)
Full specification filed date:
Application number:
None (34)
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Related to aircraft:
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National tech categories: (Click arrow to add another value)
CPCs: (Click arrow to add another value)
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Cites these patents:
Citations from after 1930:
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Showing below up to 83 results in range #1 to #83.

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