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Patents > IPCs : IPC B64C1/00 or IPC B64C30/00 & Number of claims: 4-50

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Office:
Inventors:
None (8) · Adolf Sprater (4) · Adolphe-François-Joseph Doutre (4) · Robert Esnault-Pelterie (4) · Édouard Tarron (3) · Frederick James Hargreaves (3) · Louis Marmonier (3) · Edmund Sparmann (3)
Inventor country:
Applicant person:
None (12) · Adolphe-François-Joseph Doutre (4) · Robert Esnault-Pelterie (4) · Adolf Sprater (4) · Edmund Sparmann (3) · Édouard Tarron (3) · Louis Marmonier (3) · Frederick James Hargreaves (3)
Applicant is inventor:
Tech fields:
stability (98) · airplane (84) · automatic stability (43) · design (25) · fuselage (23) · construction (23) · None (20) · control (20) · frame (19) · aerodynamics (18) · gyroscope (14) · wings (14) · equilibrium (12) · rudder (11) · subsystem (11) · landing (8) · lift (8) · propellers (7) · electricity (7) · navigation (7)
Full specification filed date:
Application number:
None (4)
Granted:
Supplementary to patent:
None (114) · Patent DE-1911-11-16 Otto Albin Budig (2) · Patent IT-1913-03-20 Vigilio Baldo (2) · Patent FR-1913-465942 (2) · Patent BE-1911-05-15 Georges de Bothezat (2) · Patent FR-1910-435648 (2) · Patent FR-1910-430552 (2)
Related to aircraft:
Patent agent:
None (23) · Armengaud jeune (9) · None (9) · Haseltine, Lake & Co. (7) · Boult, Wade & Tennant (6) · Charles Dony (6) · Marks & Clerk (6) · A. M. & William Clark (4) · Dupont et Elluin (4) · Paul Coulomb (4) · Lewis William Goold (3) · Wheatley & Mackenzie (3) · Hippolyte Josse (3) · Boramé et Julien (3) · Edward Evans & Co. (3) · Abel & Imray (3) · Schwab (3) · Munn & Co. (3)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (95) · CPC B64C2700/6218 (67) · CPC B64C1/00 (35) · CPC B64C17/06 (32) · CPC B64C2700/6216 (21) · CPC B64C2001/0063 (20) · CPC B64C2001/0081 (11) · CPC B64C2700/6228 (10) · CPC B64C2700/6219 (7) · CPC B64C1/06 (5) · CPC B64C30/00 (4) · CPC B64C1/08 (4) · CPC B64C1/061 (4) · CPC B64C2700/6225 (3) · CPC B64C2001/0072 (3) · CPC Y02T50/433 (3) · CPC B64C1/068 (3) · CPC Y02T50/40 (3)
First filing:
Citations from after 1930:
Number of diagram pages:

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