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Patents > IPCs : IPC B64C1/00 or IPC B64C23/00 & Number of claims: 7-20

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Office:
Inventors:
Adolf Sprater (4) · Frederick James Hargreaves (3) · None (2) · Sam Leonard Walkden (2) · Lin-Marius Mannent (2) · François Dergint (2) · Louis-Léon Astoux (2) · Édouard Tarron (2) · Edmund Sparmann (2) · Paul Robin (2) · Jules Védrines (2)
Inventor country:
Applicant person:
Adolf Sprater (4) · Frederick James Hargreaves (3) · None (3) · Sam Leonard Walkden (2) · Louis-Léon Astoux (2) · Jules Védrines (2) · François Dergint (2) · Lin-Marius Mannent (2) · Paul Robin (2) · Edmund Sparmann (2)
Applicant is inventor:
Tech fields:
stability (40) · airplane (35) · automatic stability (20) · Aerodynamics (9) · design (9) · None (8) · Gyroscope (7) · fuselage (6) · propellers (5) · Construction (5) · equilibrium (5) · Subsystem (4) · electricity (4) · frame (4) · control (4)
Full specification filed date:
Application number:
Granted:
Related to aircraft:
Patent agent:
None (14) · None (6) · Haseltine, Lake & Co. (3) · Marks & Clerk (3) · E. Bletry (2) · A. M. & William Clark (2) · A. de Carsalade (2) · Abel & Imray (2) · Armengaud jeune (2) · Charles Dony (2)
IPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of claims:
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