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      Scientific American March 06, 1920

      Inventions New and Interesting - March 6, 1920

      A Department Devoted to Pioneer Work in the Arts

      • March 6, 1920

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      More in the March 06, 1920 issue of Scientific American
      • Vermont Talc
      • A Year's Supply of Raw Material for the Melting Pot, Wartime Bureaus and the Taxpayer and more
      • New Books, Etc. - March 6, 1920
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