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      Knowledge is Power

      Scientific American May 1926

      Commercial Property News, May 1926

      A Department of Facts and Notes of Interest to Patentees and Owners of Trademark Rights

      • By Milton Wright on May 1, 1926

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      More in the May 1926 issue of Scientific American
      • Acoustical Research in Auditoriums
      • Horsepower from the Tides
      • Malaria and the Mosquito Fish
      View Full Contents
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