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      Scientific American February 04, 1911

      Some Notes on Telephony

      Facts and Principles Underlying Modern Practice The Sibley Journal ot Engineering of Cornell University.

      • By H. Harrison on February 4, 1911

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      More in the February 04, 1911 issue of Scientific American
      • Drifting of the Sun's Family
      • What Electrochemistry is Accomplishing—II
      • Index of Inventions
      View Full Contents
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