Patent GB-1915-4068

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From google patents: "Screw propellers. In hollow propellers particularly designed for aircraft and made from sheet metal plates n joined at the edges, metal liners b having one or more stiffening ribs extend through or across the hub from one blade to another."

Sources


Year filed 1915
Year granted 1915
Office GB
Patent number 4068
Inventors Henry Leitner
Inventor country GB
Applicant person Henry Leitner
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title
English title
Tech fields
Filing date 1915-03-15
Full specification filed date
Application number 191504068D
Grant date
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories
IPCs
CPCs CPC B64C11/24, CPC B64C11/04
Family year 1915
First filing? 1
Cites these patents
Citations from after 1930 0
Application ID 23677609
INPADOC family ID 11159665
Number of text pages
Number of diagram pages
Number of figures
Number of claims