Drilldown: Patents

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Patents > Filing date: 1880 - 1889 & Patent agent: None & Number of text pages: 2-3

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Inventors:
Otto Lilienthal (4) · Otto Hartung (2) · Georg Wellner (2)
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Tech fields:
LTA (20) · propulsion (8) · navigation (7) · balloon (7) · airship (6) · control (6) · None (5) · frame (4) · car (3) · ornithopter (3) · propeller (2) · steam (2) · rudder (2) · marine (2) · whole (2) · steering (2)
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