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      Scientific American February 14, 1874

      Canadian Patents - February 14, 1874

      List of Patents Granted in Canada, January 23, 1873

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      More in the February 14, 1874 issue of Scientific American
      • Allan's Floating Batteries and Saloons
      • Communications Received - February 14, 1874
      • Improved Gaining Machine - February 14, 1874
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