Patent FR-1916-492376

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  • Teech class CPC B64C11/205 Constructional features for protecting blades, e.g. coating
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Year filed 1916
Year granted 1919
Office FR
Patent number 492376
Inventors Louis Paulhan, Henri-Joseph-Léon-Marie de la Chevardière de la Grandville
Inventor country FR
Inventor location
Applicant person Louis Paulhan, Henri-Joseph-Léon-Marie de la Chevardière de la Grandville
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Perfectionnements apportés aux hélices, telles, notamment, que celles pour engins de navigation aérienne
English title Improvements made to propellers, such as, in particular, those for air navigation devices
Tech fields
Filing date 1916-09-11
Full specification filed date
Application number 492376D
Grant date 1919-03-18
Granted? 1
Publication date 1919-07-05
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent Paul Blum
Assigned to
National tech categories FR 6.4
IPCs IPC B64C11/20
CPCs CPC B64C11/205
Family year 1916
First filing? 1
Cites these patents
Citations from after 1930 0
Application ID 19309589
INPADOC family ID 5373234
Number of text pages 2
Number of diagram pages 0
Number of figures 0
Number of claims 1