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Patents for F. Olcott
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
95,793Oct. 12, 1869E. GranierImprovement in Combined Tool
  100,944Mar. 15, 1870S. SorrelMaterial for making grinding wheels
  100,945Mar. 15, 1870S. SorrelMaterial for making grinding wheels
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