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      Scientific American July 30, 1921

      Transporting Electric Current

      Modern Transmission Lines and the Manner of their Construction

      • By J. F. Springer on July 30, 1921

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      More in the July 30, 1921 issue of Scientific American
      • Home Building Simplified
      • Inventions New and Interesting - July 30, 1921
      • What are Vitamines?
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