Drilldown: Patents

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Patents > National tech categories: DE 77 & CPCs : CPC B64C3/54 or None

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Office:
Inventors:
Carl Alfred Johansson (3) · None (2) · Otto Schmidt (2) · Ferdinand von Zeppelin (2) · Henry Boinet (2)
Inventor country:
Inventor location:
Applicant person:
None (32) · Carl Alfred Johansson (3) · Ferdinand von Zeppelin (2) · Otto Schmidt (2)
Applicant type:
Applicant is inventor:
Tech fields:
LTA (41) · propulsion (17) · balloon (13) · navigation (11) · car (11) · propeller (11) · frame (9) · stability (9) · captive (6) · Control (5) · dirigible (5) · None (5) · electricity (4) · airship (4) · airplane (3) · automatic stability (3) · marine (3) · gas (3) · ascension (3)
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National tech categories: (Click arrow to add another value)
CPCs: (Click arrow to add another value)
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Cites these patents:
Citations from after 1930:
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Showing below up to 73 results in range #1 to #73.

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