Patent FR-1918-488555

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Year filed 1915
Year granted 1918
Office FR
Patent number 488555
Inventors Adolf Frederik Ringstroem, Jr
Inventor country NO
Applicant person Adolf Frederik Ringstroem, Jr
Applicant firm
Applicant type
Applicant is inventor? 0
Original title
English title
Tech fields
Filing date 1915-08-03
Full specification filed date
Application number 488555D
Grant date 1918-10-21
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories
IPCs
CPCs CPC B64C39/062
Family year 1915
First filing? 0
Cites these patents
Citations from after 1930
Application ID 19305852
INPADOC family ID 5369902
Number of text pages
Number of diagram pages
Number of figures
Number of claims