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      Scientific American September 06, 1919

      Merchant Marine Progress

      Some Details of a Performance That Has Shown Its Heels to Publicity

      • By C. H. Claudy on September 6, 1919

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      More in the September 06, 1919 issue of Scientific American
      • Our Technical Achievements in the Great War--VI
      • Recently Patented Inventions - September 6, 1919
      • From the Frozen Arctic to the Polisher's Bench
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