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Patents > National tech categories: FR 6.4 & IPCs : IPC B64C27/04 or IPC B64D35/06

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Office:
Inventors:
Edmond-Louis Douhéret (3) · Désiré Sival (3) · Édouard-Jean Bigourdan (2) · Edwin Richard Mumford (2) · Émile Dupont (2) · Félix Monin (2) · Paul Cornu (2) · Jules Cornu (2) · None (2) · Jules Collomb (2) · Alexis Beurrier (2) · Charles Wolf (2)
Inventor country:
Applicant person:
Edmond-Louis Douhéret (3) · Désiré Sival (3) · None (2) · Edwin Richard Mumford (2) · Émile Dupont (2) · Félix Monin (2) · Jules Cornu (2) · Jules Collomb (2) · Charles Wolf (2) · Alexis Beurrier (2)
Applicant type:
Applicant is inventor:
Tech fields:
helicopter (31) · Propulsion (16) · propellers (16) · Airplane (15) · hybrid (12) · ascension (11) · design (7) · None (7) · wings (5) · sustentation (5) · lift (5) · heavier-than-air (4) · descent (3) · Frame (3) · parachutes (3) · Helicoplane (3)
Full specification filed date:
Application number:
None (3)
Granted:
Related to aircraft:
National tech categories: (Click arrow to add another value)
IPCs: (Click arrow to add another value)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of claims:
Number of diagram pages:

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