Drilldown: Patents

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Patents > Year granted: 1860 - 1869 & Tech fields : Propulsion or military & Cites these patents : USPC 244/87 or None

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John Kinnersley Smythies (2) · Halvor Halvorson (2)
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USPC 244/3.23 (16) · None (6) · FR 5 (4) · FR 6 (4) · USPC 244/3.3 (3) · USPC 244/73R (2) · USPC 102/400 (2) · USPC 244/74 (2) · USPC 244/30 (2)
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Showing below up to 55 results in range #1 to #55.

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