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Patents > Year granted: 1921 & Related to aircraft : yes or None

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Year granted:
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Office:
Inventors:
None (15) · Glenn Hammond Curtiss (4) · Charles-Édouard-Pierre Gourdou (3) · Jean-Adolphe Leseurre (3) · Maurice-Achille Lécuyer (3) · Henry Kleckler (2) · John C PACKARD (2) · James Vernon Martin (2) · Edward Eugene Brown (2) · Pierre Levasseur (2) · Pierre-Jean-René Postel-Vinay (2) · Richard A. Engler (2) · Hermann Werner (2) · Charles B. Kirkham (2) · Arthur F BLASIAR (2)
Inventor country:
Applicant person:
None (20) · Charles-Édouard-Pierre Gourdou (3) · Maurice-Achille Lécuyer (3) · Jean-Adolphe Leseurre (3) · Hermann Werner (3) · Richard A. Engler (2) · Pierre-Jean-René Postel-Vinay (2) · Pierre Levasseur (2) · James Vernon Martin (2) · HEWLETT PACKARD (2) · GOODYEAR TIRE RUBBER (2) · Edward Eugene Brown (2) · William BOHLEBER (2)
Applicant is inventor:
Tech fields:
None (50) · airplane (25) · design (16) · construction (12) · propulsion (10) · propellers (9) · aerodynamics (8) · frame (7) · wings (7) · stability (6) · propeller (5) · monoplane (4) · subsystem (4) · LTA (4) · longerons (4) · heavier-than-air (4)
Full specification filed date:
Application number:
None (14)
Granted:
Publication date:
Related to aircraft: (Click arrow to add another value)
CPCs:
CPC B64C3/00 (13) · None (12) · CPC B64C17/00 (10) · CPC B64C23/005 (8) · CPC B64C2700/6233 (8) · CPC B64C2700/6212 (5) · CPC B64C2700/6295 (5) · CPC B64C2700/6274 (4) · CPC B64C11/00 (4) · CPC B64C39/00 (4) · CPC B64C35/00 (3) · CPC B64C33/02 (3) · CPC B64C1/00 (3) · CPC B64C2700/6271 (3)
First filing:
Cites these patents:
Citations from after 1930:
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