Patent GB-1912-25939

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This propeller innovation has to do with porpellers of the variety in which the blades are affixed to the shaft in a spiral line. This patent is connected to Mack's other work. Specific patent familial relations are being ascertained.

Patent AT-1909-48421 is being treated as the parent patent of this family.

Sources


Year filed 1912
Year granted 1913
Office GB
Patent number 25939
Inventors Heinrich Mack
Inventor country DE
Applicant person Heinrich Mack
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Improvements in or relating to Aerial Propellers
English title Improvements in or relating to Aerial Propellers
Tech fields Propellers, Propulsion, Subsystem, Design, Construction, Aerodynamics
Filing date 1912/11/12
Full specification filed date 1912/11/12
Application number 191225939D
Grant date 1913/01/02
Granted? Yes
Publication date
Supplementary to patent Patent AT-1909-48421
Related to aircraft? Yes
Serial number
Patent agent Chatwin, Herschell & Co.
Assigned to
National tech categories
IPCs IPC B64C11/00
CPCs CPC B64C11/006
Family year 1909
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 23642094
INPADOC family ID 11129226
Number of text pages 1
Number of diagram pages 1
Number of figures 1
Number of claims 1