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      Knowledge is Power

      Scientific American October 1924

      Inventions New and Interesting

      A Department Devoted to Pioneer Work in the Various Arts and to Patent News

      • October 1, 1924

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      More in the October 1924 issue of Scientific American
      • Around the World by Air
      • Ferments and their Work in the Organism
      • Our Point of View, October 1924
      View Full Contents
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