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      Knowledge is Power

      Scientific American May 08, 1886

      Index of Inventions - May 8, 1886

      For which Letters Patent of the United States were Granted

      • May 8, 1886

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      More in the May 08, 1886 issue of Scientific American
      • An Improved Pulverizer
      • Device for Separating Teeth
      • Mineral Waters of the United States
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