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Patents > Year filed: 1910 - 1919 & IPCs : IPC B64C21/02 or IPC B64C33/00

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Year filed:
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Inventors:
Franz Xaver Wels (3) · Richard A. Engler (2) · François-Philippe-Armand Rousseau (2) · Lin-Marius Mannent (2)
Inventor country:
Applicant person:
Franz Xaver Wels (3) · None (2) · François-Philippe-Armand Rousseau (2) · Lin-Marius Mannent (2) · Richard A. Engler (2)
Applicant firm:
Applicant type:
Applicant is inventor:
Tech fields:
design (12) · wings (12) · flapping (12) · ornithopter (11) · airplane (10) · lift (9) · Propulsion (7) · frame (6) · stability (6) · construction (6) · aerodynamics (5) · hybrid (5) · HTA (5) · human-powered (4) · glider (4) · sustentation (3) · None (3) · control (3)
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Related to aircraft:
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IPCs: (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 42 results in range #1 to #42.

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