Drilldown: Patents

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Patents > Year granted: 1920 - 1929 & Tech fields : adjudicated or propeller

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None (14) · Christian Lorenzen (5) · Seth Hart (4) · Jakob Haw (4) · Robert Ingersoll Eustis (3) · Arthur R. Lyons (2) · Charles B. Kirkham (2) · Reinhard Mannesmann (2)
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Showing below up to 66 results in range #1 to #66.

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