Patent FR-1910-413267

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1910/01/01? this date appears in earlier record of this patent. Why?

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Sources

  • {{esp|FR|413267A espacenet]


Year filed 1910
Year granted 1910
Office FR
Patent number 413267
Inventors Philipp Doerhoefer
Inventor country DE
Applicant person Philipp Doerhoefer
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Aéronat à quille inférieure
English title Airship with keel
Tech fields LTA, navigation, fuselage, keel, quille
Filing date March 4, 1910
Full specification filed date
Application number 413267D
Grant date May 5, 0910
Granted? Yes
Publication date August 4, 1910
Supplementary to patent DE 1910-01-01
Related to aircraft? Yes
Serial number
Patent agent de Bongé
Assigned to
National tech categories FR 6.4
IPCs IPC B64B1/00
CPCs CPC B64B1/00
Family year 1910
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 19232314
INPADOC family ID 5306849
Number of text pages 1
Number of diagram pages 1
Number of figures 2
Number of claims 1