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      Knowledge is Power

      Scientific American April 1928

      Simplified Photo-Radio Transmission

      Only Ninety Seconds Required For Complete Sending and Receiving of Photographs

      • April 1, 1928

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      More in the April 1928 issue of Scientific American
      • A Mountain That Will Fall
      • From the Scrap-book of Science--Camera Shots of Scientific Events, April 1928
      • Lawn Shaver, Powerful Pruner and more
      View Full Contents
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