Patent CH-1902-23691

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Sources

(This is essentially the same as Patent GB-1901-3691 and Patent HU-1901-22471 and Patent AT-1903-12702 and Patent ES-1901-27364, with the Spanish filing factoring in early, and with the Hungarian patent seemingly being the earliest filed.)

(The only date visible on this original document is “20 février 1901, 7 h. p.”, which is peculiarly vague, particularly in an inter-linguistic context. That is the date we have as the application date on Patent HU-1901-22471, and that would bring things into fine comportment. It is conceiveable of course that a francophone from Monaco would file initially in Switzerland, but we have the Hungarian date of publication 1901.09.28)

(An A. Ritter, of Bâle(Basel), is mentioned as mandataire. See Ritter for some disambiguation.)


Year filed 1901
Year granted 1902
Office CH
Patent number 23691
Inventors Maurice Léger
Inventor country MC
Applicant person Maurice Léger
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Hélicoptère ou appareil volaut dirigeable plus lourd que l'air, mû des hélices
English title Helicopter or airship flying aircraft heavier than air, powered by propellers
Tech fields Helicopter
Filing date
Full specification filed date
Application number
Grant date
Granted?
Publication date
Supplementary to patent Patent HU-1901-22471
Related to aircraft? Yes
Serial number
Patent agent A. Ritter
Assigned to
National tech categories CH 115
IPCs
CPCs
Family year 1901
First filing? No
Cites these patents
Citations from after 1930
Application ID
INPADOC family ID
Number of text pages 4
Number of diagram pages 2
Number of figures 10
Number of claims 3