Drilldown: Patents

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Patents > Year filed: 1890 - 1899 & Office : BE or US & Tech fields : marine or propulsion & Granted: Yes & Related to aircraft : -1 or 0.5 or 1909-11-30 or flapping or frame or Other

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Inventors:
Burr Frank Barnes (2) · Stewart Cairncross (2)
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National tech categories:
None (13) · USPC 244/28 (3) · USPC 244/30 (3) · USPC 244/26 (2) · USPC 416/116 (2) · USPC 416/112 (2) · USPC 416/108 (2) · USPC 180/220 (2) · USPC 114/21.1 (2) · USPC 244/27 (2)
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Showing below up to 52 results in range #1 to #52.

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