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      Scientific American December 21, 1912

      Holding Circular Saws While Sharpening

      • By William Grötzinger on December 21, 1912

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      More in the December 21, 1912 issue of Scientific American
      • Correspondance - December 21, 19
      • Steady Rests for Small Lathes
      • Sending Photographs Over a Telephone Wire
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