Patent FR-1910-420469

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  • Inventor location: Australia

Sources

Patent family descending from Patent GB-1910-18683


Year filed 1910
Year granted 1910
Office FR
Patent number 420469
Inventors William Francis Dugins
Inventor country AU
Inventor location
Applicant person William Francis Dugins
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Perfectionnements aux machines volantes
English title Flying machines
Tech fields flapping, heavier-than-air
Filing date 1910/08/09
Full specification filed date
Application number 420469D
Grant date 1910/11/24
Granted? Yes
Publication date 1911/01/31
Supplementary to patent Patent GB-1910-18683
Related to aircraft? 1
Serial number
Patent agent A. de Carsalade
Assigned to
National tech categories FR 6.4
IPCs IPC B64C23/00
CPCs CPC B64C23/005
Family year 1910
First filing? No
Cites these patents
Citations from after 1930
Application ID 19239352
INPADOC family ID 5312934
Number of text pages 4
Number of diagram pages 1
Number of figures 10
Number of claims 8