Patent GB-1912-20927

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Reference is made herein to French priority date 1911-09-27, that is, to Patent FR-1911-446282.

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Patent family descending from Patent GB-1912-20927


Year filed 1912
Year granted 1912
Office GB
Patent number 20927
Inventors Robert Esnault-Pelterie
Inventor country FR
Applicant person Robert Esnault-Pelterie
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Improvements in Aeroplanes
English title Airplane stability
Tech fields airplane, stability, automatic stability
Filing date 1912/09/13
Full specification filed date
Application number 191220927D
Grant date 1912/10/24
Granted? Yes
Publication date
Supplementary to patent Patent FR-1911-446282
Related to aircraft? Yes
Serial number
Patent agent Abel & Imray
Assigned to
National tech categories
IPCs IPC B64C1/00
CPCs CPC B64C2700/6218, CPC B64C17/00
Family year 1911
First filing? No
Cites these patents
Citations from after 1930
Application ID 23639209
INPADOC family ID 5908680
Number of text pages 2
Number of diagram pages 1
Number of figures 3
Number of claims 2