Patent FR-1908-401460

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  • Inventor location: Holland

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Year filed 1908
Year granted 1909
Office FR
Patent number 401460
Inventors Emanuel Spreekmeester
Inventor country NL
Inventor location
Applicant person Emanuel Spreekmeester
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Système de direction pour aérostats
English title Steering system for airships
Tech fields Navigation, control, LTA, propeller
Filing date 1908-07-23
Full specification filed date
Application number 401460D
Grant date 1909-07-24
Granted? 1
Publication date 1909-08-31
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent V. Dupont
Assigned to
National tech categories FR 6.4
IPCs IPC B64B1/00
CPCs CPC B64B1/00
Family year 1908
First filing? 0
Cites these patents
Citations from after 1930
Application ID 19220768
INPADOC family ID 5298801
Number of text pages 2
Number of diagram pages 1
Number of figures 2
Number of claims 1