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      Knowledge is Power

      Scientific American January 1927

      Commercial Property News, January 1927

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

      • By Milton Wright on January 1, 1927

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      More in the January 1927 issue of Scientific American
      • Applied Science for the Amateur
      • From the Scrap-book of Science--Camera Shots of Scientific Happenings
      • Patents Recently Issued, January 1927
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