Patent AT-1900-4050

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Airship design with a focus on screw propeller. Although Krocker is Austrian he filed his patent in Germany a few days early so we treat that as the original.

Patent family descending from Patent DE-1899-123884


Year filed 1899
Year granted 1900
Office AT
Patent number 4050
Inventors Rudolf Krocker
Inventor country AT
Applicant person
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Im Ballonkörper gelagerte Luftschraube
English title Air-screw housed in balloon body
Tech fields LTA, design, balloon, propeller, propulsion
Filing date 1899-12-04
Full specification filed date
Application number
Grant date 1900-12-01
Granted? 1
Publication date 1901-05-10
Supplementary to patent Patent DE-1899-123884
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories AT 77d
Family year
First filing?
Cites these patents
Citations from after 1930
Application ID
Number of text pages 1
Number of diagram pages 1
Number of figures 3
Number of claims