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      Scientific American January 20, 1912

      Gas Enǵine Piston Rinǵs

      A Page from an Engineer's Notebook

      • By S. H. Sweet on January 20, 1912

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      More in the January 20, 1912 issue of Scientific American
      • Geophysical Research
      • The Properties of Selenium and their Applications in Electrotechnics
      • House Numbers on Curb
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