Patent FR-1855-22510

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  • Inventor location: Toulon, Var

Sources

  • Research page of INPI website - search for Janvier's name to see the record exists, although we seem to be "blocked" from seeing the archive record or the "dossier" (patent specification) in their system


Year filed 1855
Year granted 1855
Office FR
Patent number 22510
Inventors Louis Janvier
Inventor country
Applicant person Louis Janvier
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title appareil d'embrayage et de désembrayage applicable aux hélices des bâtiments à vapeur
English title tool for the connection and disconnection of great steamship propellers
Tech fields propulsion, marine?
Filing date 1855-03-03
Full specification filed date
Application number
Grant date 1855-05-20
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 0.5
Serial number
Patent agent
Assigned to
National tech categories
IPCs
CPCs
Family year 1855
First filing? 1
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages
Number of diagram pages
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Number of claims