Patent FR-1911-426539

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Year filed 1911
Year granted 1911
Office FR
Patent number 426539
Inventors Oskar Heimstaedt
Inventor country AT
Applicant person Oskar Heimstaedt
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Hélice aérienne sans action gyroscopique
English title Propeller without gyroscopic action
Tech fields propeller, stability
Filing date 1911-02-24
Full specification filed date
Application number 426539D
Grant date 1911-05-11
Granted? 1
Publication date 1911-07-08
Supplementary to patent Patent AT-1910-03-15
Related to aircraft? 1
Serial number
Patent agent Armengaud jeune
Assigned to
National tech categories FR 6.4
IPCs IPC B64C11/28
CPCs CPC B64C11/28
Family year 1910
First filing? 1
Cites these patents
Citations from after 1930
Application ID 19245291
INPADOC family ID 5318022
Number of text pages 1
Number of diagram pages 1
Number of figures 1
Number of claims 1