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      Scientific American July 19, 1862

      Six Good Reasons Why Every Manufacturer, Mechanic, Inventor and Artizan Should Become a Patron of the Scientific American

      • July 19, 1862

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      More in the July 19, 1862 issue of Scientific American
      • Notes and Queries - July 19, 1862
      • Correspondence - July 19, 1862
      • Notes on Military and Naval Affairs
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