Drilldown: Patents

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Patents > Grant date: 1890 - 1899 & National tech categories: DE 77 & IPCs: None

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Inventors:
Ferdinand von Zeppelin (2) · Edward Joel Pennington (2) · Richard Czygan (2) · Raphael Ernst May (2) · Federico Capone (2) · Carl Friedrich Billwiller (2) · Henry Boinet (2)
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Tech fields:
LTA (31) · balloon (13) · navigation (12) · propulsion (12) · frame (10) · propeller (10) · car (8) · stability (4) · None (4) · dirigible (4) · airship (4) · parachute (3) · piloting (3) · captive (3) · marine (3) · design (3)
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