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      Knowledge is Power

      Scientific American July 27, 1918

      Price Fixing Contracts on Patented Articles

      • By E. B. Marshall on July 27, 1918

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      More in the July 27, 1918 issue of Scientific American
      • A Flower that Catches Insects
      • New Books, Etc.- July 27, 1918
      • The Heavens in August, 1918
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