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Patents for Hugh Williams
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  341,538May 11, 1886H. Williams, C.H. AndrewGas Engine
  386,949Jul. 31, 1888H. WilliamsGas Motor Engine
  457,020Aug. 04, 1891H. WilliamsGas Motor Engine
  490,006Jan. 17, 1893H. WilliamsGas or Similar Motor Engine
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