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      Scientific American December 12, 1908

      Twenty-Watt Tungsten Lamps

      The Future of the Tungsten Lamp

      • By Alton D. Adams on December 12, 1908

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      More in the December 12, 1908 issue of Scientific American
      • A Novel Type of Road Train
      • Electrolytic Sheets and Tubes
      • Humane Slaughtering for Abattoirs
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