Drilldown: Patents

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Patents > Year granted: 1880 - 1889 & National tech categories : DE 77 or USPC 244/28

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Inventors:
Ernst Georg August Baumgarten (4) · Blaise Bontems (2) · Frederick William Brearey (2)
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LTA (29) · propulsion (13) · navigation (11) · control (9) · airship (8) · balloon (8) · flapping (8) · ornithopter (6) · car (5) · marine (4) · propeller (4) · piloting (4) · whole (3) · steering (3)
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Showing below up to 43 results in range #1 to #43.

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