Patent US-1911-1025658

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No priority date reference is made on this original document. However, it is clearly in the family of Patent FR-1910-423792, and seemingly in the vein of that brevet's 1st addition, Patent FR-1911-423792.14664.

Sources


Year filed 1911
Year granted 1912
Office US
Patent number 1025658
Inventors André-Julien Mahoudeau
Inventor country US
Applicant person André-Julien Mahoudeau dit de Villethiou
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title SCREW-PROPELLER WITH OPEN CENTER
English title Propeller with open center
Tech fields Propellers, Propulsion, Design, Subsystem
Filing date 1911/09/14
Full specification filed date
Application number 423792D
Grant date 1912-05-07
Granted? Yes
Publication date 1912-05-07
Supplementary to patent Patent FR-1910-423792, Patent FR-1911-423792.14664
Related to aircraft? Yes
Serial number 649364
Patent agent
Assigned to
National tech categories
IPCs
CPCs CPC F04D29/281
Family year 1910
First filing? 1
Cites these patents
Citations from after 1930 0
Application ID 19242608
INPADOC family ID 5199040
Number of text pages 2
Number of diagram pages 1
Number of figures 3
Number of claims 2