Patent IT-1901-58652

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Shares earliest filing date (known to us; with surprising lack of a French patent) with Hungarian and British filings.


Year filed 1901
Year granted 1901
Office IT
Patent number 58652
Inventors Maurice Léger
Inventor country MC
Applicant person
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Hélicoptère, ou appareil volant dirigeable plus lourd que l'air, mû par des hélices
English title Helicopter, or steerable heavier-than-air flying apparatus moved by propellers
Tech fields helicopter, whole, propeller
Filing date 1901-02-20
Full specification filed date
Application number
Grant date
Granted? 1
Publication date
Supplementary to patent Patent HU-1901-22471
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories IT 8
Family year
First filing?
Cites these patents
Citations from after 1930
Application ID
Number of text pages
Number of diagram pages
Number of figures
Number of claims