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Patents for Reuben H. Brown
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
288,770Nov. 20, 1883R.H. BrownCalipers
288,771Nov. 20, 1883R.H. BrownCalipers
530,923Dec. 18, 1894R.H. BrownExpansion-bit
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