Difference between revisions of "Patent FR-1910-417989"

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(Concentric biplane with contrary movements, actually a helicopter, featuring two counter-rotating blades, or sets of blades)
(Édouard-Jean Bigourdan{{FRpatentsources|417989A}} none and related to aircraft)
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=== Sources ===
 
=== Sources ===
* {{esp|FR|417989A}}
+
{{FRpatentsources|417989A}}
 
* Inventor location: Montguyon, [[département]] [[Charente-Inférieure]], France
 
* Inventor location: Montguyon, [[département]] [[Charente-Inférieure]], France
  
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|Original title=Biplan concentrique à mouvements contraires
 
|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
 
|English title=Concentric biplane with contrary movements, actually a helicopter, featuring two counter-rotating blades, or sets of blades
|Tech field=design; helicopter
+
|Tech field=design; helicopter; HTA
 
|Filing date=1910/06/25
 
|Filing date=1910/06/25
 
|Application number=417989D
 
|Application number=417989D
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|Granted=Yes
 
|Granted=Yes
 
|Publication date=1910/11/28
 
|Publication date=1910/11/28
|Related to aircraft=Yes
+
|Related to aircraft=1
 +
|Patent agent=None
 
|National tech categories=FR 6.4
 
|National tech categories=FR 6.4
 
|IPCs=IPC B64C11/00
 
|IPCs=IPC B64C11/00

Revision as of 08:26, 28 March 2024

Patent FR-1910-417989

Sources

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