Patent FR-1909-399591

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FR-1909-399591-figs.png

Tubes—not cylindrical but having rather a polygonal cross-section—made of wood and fabric(? toile) used such that "le bois travaille à la compression et la toile à l'extension". The patent concerns the makeup of the tube itself which is "prismatic" in its makeup.

Sources


Year filed 1909
Year granted 1909
Office FR
Patent number 399591
Inventors Pierre-Georges Unné, Georges-Henri-Marius Canton
Inventor country FR
Applicant person
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Tubes destinés à la construction des aéroplanes ou autres appareils extra-légers
English title Tubes for construction of airplanes or other very light machinery
Tech fields frame, weight, wood, fabric
Filing date 1909-02-17
Full specification filed date
Application number
Grant date 1909-04-26
Granted? 1
Publication date 1909-07-01
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent Lavoix et Mosès
Assigned to
National tech categories FR 5.3
IPCs
CPCs
Family year
First filing?
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages 2
Number of diagram pages 1
Number of figures 5
Number of claims