Patent DE-1918-335054

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Year filed 1918
Year granted 1921
Office DE
Patent number 335054
Inventors Michel Schleiffer
Inventor country FR
Applicant person Michel Schleiffer
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Flugzeug mit Mehrschraubenantrieb
English title Aircraft with (improved?) screw drive
Tech fields Propulsion, propellers, airplane, design, aerodynamics
Filing date 1918/02/02
Full specification filed date
Application number 335054D
Grant date 1921/03/22
Granted? Yes
Publication date 1921/03/22
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories DE 77h.5
IPCs IPC B64C11/00
CPCs CPC B64C11/00, CPC B64D2700/62692
Family year 1918
First filing? No
Cites these patents
Citations from after 1930
Application ID 10717235
INPADOC family ID 10071316
Number of text pages 2
Number of diagram pages 1
Number of figures 2
Number of claims 2