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Patents > National tech categories : DE 77 or GB 4 without buoyant & IPCs: None

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Office:
Inventors:
Hiram Stevens Maxim (4) · Carl Alfred Johansson (3) · None (2) · Georg Fischer (2) · John Marshall (2) · Edward Joel Pennington (2) · Raphael Ernst May (2) · Richard Czygan (2) · Ferdinand von Zeppelin (2) · Arthur Henry Philip Blunt (2) · Federico Capone (2) · Octave Chanute (2) · Rudolf Diesel (2) · Henry Boinet (2) · Dr. Bernhard Reinhard Beenen (2) · Hermann Israel (2) · Wilhelm Ellingen (2)
Inventor country:
Applicant person:
None (71) · Carl Alfred Johansson (3) · Raphael Ernst May (2) · Ferdinand von Zeppelin (2) · Federico Capone (2) · Georg Fischer (2) · Richard Czygan (2)
Applicant type:
Applicant is inventor:
Tech fields:
LTA (54) · propulsion (38) · navigation (24) · balloon (22) · frame (22) · None (20) · propeller (20) · car (19) · heavier-than-air (11) · stability (11) · flapping (10) · captive (8) · airplane (8) · steam (8) · airship (7) · rudder (7) · design (7) · electricity (6) · parachute (6) · wings (6)
Full specification filed date:
Application number:
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Related to aircraft:
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National tech categories: (Click arrow to add another value)
IPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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