Patent AT-1904-21502

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  • beginn patentdauer 1905-04-15?
  • Inventor location: 123 Munster Strasse, Dortmund, Empire of Germany; Civil Engineer


Year filed 1904
Year granted 1905
Office AT
Patent number 21502
Inventors Gustav Knäpper
Inventor country DE
Applicant person Gustav Knäpper
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Antriebsvorrichtung für Luftschiffe
English title Improvements in the Propulsion of Bodies Floating in the Air
Tech fields propulsion
Filing date 1904-11-14
Full specification filed date
Application number
Grant date 1905-09-25
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories
Family year 1904
First filing? 1
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 1