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Patents > IPCs : IPC B64C27/04 or IPC B64C29/00 & Number of text pages: 2-3

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Office:
Inventors:
James Robertson Porter (7) · Louis Lacoin (3) · Alexis Beurrier (3) · Désiré Sival (3) · Édouard-Jean Bigourdan (3) · Jules Collomb (2) · Edmond-Louis Douhéret (2) · Paul Cornu (2) · Charles Wolf (2) · Jules Cornu (2) · Émile-Jean-Jules Salmson (2) · Félix Monin (2) · Giulio Silvestri (2) · Jesse James Dillon (2)
Inventor country:
Applicant person:
James Robertson Porter (7) · Alexis Beurrier (3) · Louis Lacoin (3) · Désiré Sival (3) · Jules Cornu (2) · Edmond-Louis Douhéret (2) · Giulio Silvestri (2) · Jesse James Dillon (2) · Félix Monin (2) · Paul Cornu (2) · Jules Collomb (2) · Charles Wolf (2)
Applicant type:
Applicant is inventor:
Tech fields:
helicopter (32) · propulsion (23) · propellers (20) · airplane (17) · ascension (16) · None (13) · hybrid (13) · design (11) · Lift (10) · propeller (8) · sustentation (7) · wings (6) · frame (6) · HTA (6) · whole (5) · wheels (4) · descent (4) · Construction (4) · stability (4)
Full specification filed date:
Application number:
None (5)
Granted:
Related to aircraft:
Patent agent:
None (18) · None (6) · J. Germain (6) · Arthur E. Edwards (3) · Armengaud jeune (3) · Y. Rabilloud et fils (3) · Lavoix et Moses (3) · Marks & Clerk (2) · J. Fayollet (2) · G. Petiau (2) · G. de Mestral et F. Harlé (2) · Munn & Co. (2) · Newnham Browne & Co. (2) · C. Blétry (2) · Schwab (2)
IPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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