Patent GB-1908-17877

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This patent does not appear to refer to any Swedish or Mexican predecessors, but realistically it must be a child patent. We need to trace that, presumably by comparing the diagrams.

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Sources


Year filed 1908
Year granted 1909
Office MX
Patent number 17877
Inventors Frederick William Dufwa
Inventor country MX
Applicant person Frederick William Dufwa
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Improvements relating to flying Machines
English title Improvements relating to flying Machines
Tech fields rudder
Filing date 1908-08-25
Full specification filed date
Application number
Grant date 1909-03-25
Granted? 1
Publication date
Supplementary to patent Not identified yet
Related to aircraft? 1
Serial number
Patent agent Haseltine, Lake & Co.
Assigned to
National tech categories
IPCs
CPCs
Family year 1908
First filing? 0
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages 6
Number of diagram pages 2
Number of figures 7
Number of claims 14