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Patents > Tech fields: automatic stability & IPCs : IPC B64C39/08 or None

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Office:
Inventors:
Étienne Carret (7) · Adrien Schmitt (7) · George Brougham Hubert Austin (5) · Carl Alfred Johansson (5) · Jean Georges Ramel (4) · John Seiler (4) · Georges de Bothezat (4) · Edmund Sparmann (4) · Otto Albin Budig (4) · Sam Leonard Walkden‎‎ (4) · Max Hinek (3) · Julius Pompe (3) · Donát Bánki (3) · Jean-Jules Cambou (3) · Sergei Tscherwinsky (3) · Auguste-Pierre Biais (3)
Inventor country:
Applicant person:
None (9) · Étienne Carret (7) · Adrien Schmitt (7) · Carl Alfred Johansson (5) · Otto Albin Budig (4) · George Brougham Hubert Austin (4) · Georges de Bothezat (4) · Jean Georges Ramel (4) · Edmund Sparmann (4) · Sam Leonard Walkden (4) · Auguste-Pierre Biais (3) · Donát Bánki (3) · Jean-Jules Cambou (3) · Sergei Tscherwinsky (3) · Julius Pompe (3)
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Full specification filed date:
Application number:
None (75)
Granted:
Related to aircraft:
Patent agent:
None (100) · Victor J. Evans (4) · E. Blum & Co. (2) · Raclot (2) · Marks & Clerk (2) · Munn & Co. (2)
National tech categories:
HU V/h (31) · None (24) · CH 129b (10) · AT 77d (10) · BE K (8) · USPC 244/80 (8) · USPC 244/177 (8) · USPC 244/79 (5) · FR 6.4 (5) · IT 8 (4) · USPC 244/90R (4) · USPC 244/93 (3) · USPC 244/78.1 (3) · DE 77 (3) · USPC 244/45R (3)
IPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
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