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Patents > Office: FR & IPCs : IPC B64C19/00 or IPC B64C27/04

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Office: (Click arrow to add another value)
Inventors:
Désiré Sival (3) · None (2) · Félix Monin (2) · Édouard-Jean Bigourdan (2) · Edwin Richard Mumford (2) · Émile Dupont (2) · Charles Wolf (2) · Jules Collomb (2) · Alexis Beurrier (2) · Edmond-Louis Douhéret (2)
Inventor country:
Applicant person:
Désiré Sival (3) · None (2) · Charles Wolf (2) · Edwin Richard Mumford (2) · Émile Dupont (2) · Jules Collomb (2) · Félix Monin (2) · Edmond-Louis Douhéret (2) · Alexis Beurrier (2)
Applicant is inventor:
Tech fields:
helicopter (32) · propellers (17) · airplane (16) · propulsion (16) · ascension (12) · hybrid (10) · design (9) · None (8) · wings (6) · frame (6) · sustentation (5) · Lift (5) · propeller (4) · heavier-than-air (4) · construction (4) · descent (3) · HTA (3) · wheels (3) · parachutes (3)
Full specification filed date:
Application number:
None (2)
Granted:
Related to aircraft:
National tech categories:
IPCs: (Click arrow to add another value)
First filing:
Cites these patents:
Citations from after 1930:
Number of diagram pages:

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