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Patents > Family year: 1910 & Number of text pages: 1-2 & Number of diagram pages: 2

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Year filed:
(There are no values for this filter)
Year granted:
Office:
Inventors:
Armin Helfer (2) · René-Louis Riout (2)
Inventor country:
Applicant person:
None (4) · Armin Helfer (2) · René-Louis Riout (2)
Applicant is inventor:
Tech fields:
None (18) · airplane (17) · stability (11) · frame (9) · propeller (8) · rudder (6) · wheels (5) · propulsion (5) · navigation (5) · helicopter (5) · design (4) · takeoff (3) · ornithopter (3) · wings (3) · automatic stability (3) · airfoil (3) · construction (3)
Application number:
None (8)
Granted:
Related to aircraft:
Patent agent:
None (15) · None (4) · Munn & Co. (3) · Joshua R. H. Potts (2)
CPCs:
CPC B64C2700/6295 (7) · CPC B64C23/005 (5) · CPC B64C17/00 (4) · CPC B64C33/02 (3) · CPC B64C2700/6274 (3) · CPC B64C17/06 (3) · CPC B64C27/54 (2) · CPC B64C35/00 (2) · CPC B64C3/14 (2) · CPC B64C39/00 (2) · CPC B64C2700/6218 (2) · CPC B64C2700/6216 (2) · CPC B64C39/08 (2) · CPC B64C33/00 (2) · CPC B64C13/00 (2) · CPC B64C11/006 (2)
Family year:
(There are no values for this filter)
First filing:
Citations from after 1930:
Number of text pages:
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