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Patents for Hinsdale Smith
Patents 1 - 7 of 7
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
  624,555May 09, 1899H. SmithExplosive Engine
  626,444Jun. 06, 1899H. SmithVariable Speed Gearing
  626,445Jun. 06, 1899H. SmithVariable Speed Gearing
  632,762Sep. 12, 1899H. SmithGas Engine
  632,763Sep. 12, 1899H. SmithExplosive Gas Engine
  657,576Sep. 11, 1900H. SmithGas Engine
  663,475Dec. 11, 1900H. SmithGas Engine
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