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Patents for Nichols, Shepard & Co.
Patents 1 - 2 of 2
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PictureNumberDatePatenteeTitle
  244,807Jul. 26, 1881A.J. HoagReversing Gear for Steam Traction Engines
  RE9,951Nov. 29, 1881A.J. HoagReversing Gear for Steam Traction Engines
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