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      Scientific American January 24, 1920

      Inventions New and Interesting - - January 24, 1920

      A Department Devoted to Pioneer Work in the Arts

      • January 24, 1920

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      More in the January 24, 1920 issue of Scientific American
      • The New York State Barge Canal--III
      • Blazing Wisconsin Ways, Hydro Power for the Canadian Farmer and more
      • The Romance of Invention--VII
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