Drilldown: Patents

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Patents > Filing date: 1880 - 1889 & National tech categories : DE 77 or DE 77h.5 or USPC 244/80

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Inventors:
Ernst Georg August Baumgarten (2) · Frederick William Brearey (2)
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LTA (25) · propulsion (11) · Control (8) · navigation (8) · balloon (7) · airship (6) · ornithopter (4) · car (4) · dirigible (3) · electricity (2) · piloting (2) · propeller (2) · flapping (2) · marine (2) · steering (2) · whole (2)
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Showing below up to 39 results in range #1 to #39.

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