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      Scientific American July 20, 1912

      Laying Out a Cable System Through the River Trave

      For High Tension and Telephone Transmission

      • July 20, 1912

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      More in the July 20, 1912 issue of Scientific American
      • Elements of Theoretical Aeromechanics
      • The Electrically Operated Loftus Ironstone Mine
      • The Elusive Will-o'-the Wisp
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