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Patents > Patent agent : Herbert Haddan & Co. or J. Germain & Number of text pages: 1-2

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Office:
Inventors:
Émile Letord (18) · None (5) · Jean Constantin (3) · Louis Marmonier (3) · Désiré Sival (3) · Jean Desbois (2) · Raymond de Montgolfier (2) · Philipp Doerhoefer (2) · Désiré Crayssac (2) · Gustav Mees (2)
Inventor country:
Applicant person:
Émile Letord (18) · None (6) · Jean Constantin (3) · Louis Marmonier (3) · Désiré Sival (3) · Jean Desbois (2) · Raymond de Montgolfier (2) · Philipp Doerhoefer (2) · Désiré Crayssac (2) · Gustav Mees (2)
Applicant is inventor:
Tech fields:
airplane (21) · frame (17) · construction (15) · LTA (12) · Design (12) · Stability (11) · control (11) · automatic stability (8) · Propulsion (7) · propellers (7) · aerodynamics (7) · structure (6) · Helicopter (6) · wings (5) · equilibrium (5)
Full specification filed date:
Application number:
None (12) · 1732817 (3) · 510210D (2) · 496388D (2) · 494571D (2)
Granted:
Related to aircraft:
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National tech categories:
CPCs:
CPC B64C17/00 (6) · None (5) · CPC B64D33/10 (5) · CPC B64C39/00 (5) · CPC B64C2700/6295 (5) · CPC B64C2700/6274 (4) · CPC B64C23/005 (4) · CPC B64F2700/6226 (3) · CPC B64C3/18 (3) · CPC B64C3/00 (3) · CPC B64C2700/6218 (3) · CPC B64C25/62 (3) · CPC B64C2700/6281 (3) · CPC B64B1/58 (3) · CPC B64B1/00 (3)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
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