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All Patents in class 74/465
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
119,683Oct. 03, 1871L.R. FaughtImprovement in cog-gearing
604,662May 24, 1898H.B. KeiperGearing
  605,722Jun. 14, 1898H.B. KeiperGearing
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