Drilldown: Patents

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Patents > Filing date: 1880 - 1889 & National tech categories : DE 77 or USPC 244/22

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Inventors:
Frederick William Brearey (4) · Ernst Georg August Baumgarten (2)
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Tech fields:
LTA (24) · propulsion (12) · control (8) · navigation (7) · balloon (7) · airship (6) · car (4) · flapping (4) · ornithopter (4) · marine (3) · dirigible (3) · glider (3) · frame (3) · steering (2) · propeller (2) · electricity (2) · whole (2) · piloting (2)
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Showing below up to 41 results in range #1 to #41.

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