Patent FR-1891-217128

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BOPI info pertinent to 1891


Inventor location: rue Fontaine, 9, Paris


Year filed
Year granted 1891
Office FR
Patent number 217128
Inventors Backman
Inventor country
Applicant person Backman
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Gouvernail gyroscopique
English title Gyroscopic rudder
Tech fields
Filing date
Full specification filed date
Application number
Grant date October 31, 1891
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? Partially
Serial number
Patent agent
Assigned to
National tech categories
IPCs
CPCs
Family year
First filing? No
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages
Number of diagram pages
Number of figures
Number of claims