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      Celebrate Math Awareness Month

      Scientific American November 02, 1912

      Mortar Fire

      A System for Attacking the Decks of Battleships

      • By Charles A. Junken

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      More in the November 02, 1912 issue of Scientific American
      • Inventions New and Interesting - November 2, 1912
      • Panama Exposition Postage Stamps, Notice
      • Recently Patented Inventions - November 2, 1912
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