Patent CH-1899-20834

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Year filed 1899
Year granted 1901
Office CH
Patent number 20834
Inventors Rudolf Krocker
Inventor country AT
Applicant person
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Schraubenluftschiff
English title Screw-airship
Tech fields LTA, propeller, propulsion, design
Filing date 1899-12-02
Full specification filed date
Application number
Grant date
Granted? 1
Publication date
Supplementary to patent Patent DE-1899-123884
Related to aircraft? 1
Serial number
Patent agent E. Imer-Schneider
Assigned to
National tech categories CH 115
Family year
First filing?
Cites these patents
Citations from after 1930
Application ID
Number of text pages 2
Number of diagram pages 1
Number of figures 3
Number of claims