Drilldown: Patents

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Patents > Year filed: 1880 - 1889 & Office : BE or DE or SE

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Office: (Click arrow to add another value)
Inventors:
Otto Lilienthal (6) · Ernst Georg August Baumgarten (4) · Otto Hartung (2) · Wald Gustafson (2) · Blaise Bontems (2) · Frederick William Brearey (2)
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Tech fields:
LTA (29) · propulsion (15) · control (10) · navigation (8) · balloon (7) · None (7) · airship (7) · ornithopter (5) · car (4) · steering (3) · dirigible (3) · electricity (3) · flapping (3) · whole (3) · marine (3)
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Showing below up to 57 results in range #1 to #57.

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