Patent FR-1910-417989

From Inventing aviation
Jump to navigation Jump to search
Diagram page of Patent FR-1910-417989


Patent family descending from Patent FR-1910-417989

Year filed 1910
Year granted 1910
Office FR
Patent number 417989
Inventors Édouard-Jean Bigourdan
Inventor country FR
Applicant person Édouard-Jean Bigourdan
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Biplan concentrique à mouvements contraires
English title Concentric biplane with contrary movements, actually a helicopter, featuring two counter-rotating blades, or sets of blades
Tech fields design, helicopter, HTA
Filing date 1910/06/25
Full specification filed date
Application number 417989D
Grant date 1910/09/16
Granted? Yes
Publication date 1910/11/28
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent None
Assigned to
National tech categories FR 6.4
IPCs IPC B64C11/00
CPCs CPC B64C11/005
Family year 1910
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 19236929
INPADOC family ID 5198345
Number of text pages 2
Number of diagram pages 1
Number of figures 5
Number of claims 1