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      Scientific American September 09, 1905

      The Laboratory for the Testing of Materials of the Charlottenburg Polytechnic School of Berlin

      • By L. Ramakers on September 9, 1905

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      More in the September 09, 1905 issue of Scientific American
      • Naval Losses of the Russo-Japanese War
      • Recently Patented Inventions - September 9, 1905
      • A Fireless Cooker
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