Patent FR-1916-491738

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Page 1 of the original Patent FR-1916-491738
Figure 6 of the original Patent FR-1916-491738

This four-winged airplane has the wings arranged in pairs, one pair behind another. In this sense, it is not what we might call a “quadroplane”.

Sources

In the case of this patent, and numerous others, the "BIBLIOTHEEK" stamp is of note. The word is the Dutch equivalent of the French "bibliothèque"(library), and we are unsure as to the manner in which Dutch, or Belgian, archives have factored into this process.

Patent family descending from Patent FR-1916-491738


Year filed 1916
Year granted 1919
Office FR
Patent number 491738
Inventors Jane-Françoise-Mathilde Giraud
Inventor country DZ
Applicant person Jane-Françoise-Mathilde Giraud
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Appareil aérien à quatre plans
English title Aerial apparatus with four wings
Tech fields wings, airplane, design
Filing date 1916/02/10
Full specification filed date
Application number 491738D
Grant date 1919/02/14
Granted? Yes
Publication date 1919/06/16
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories FR 6.4
IPCs IPC B64C23/00
CPCs CPC B64C23/005
Family year 1916
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 19308960
INPADOC family ID 5202810
Number of text pages 2
Number of diagram pages 3
Number of figures 7
Number of claims 1