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      Scientific American July 30, 1881

      Annular Wheels

      Forms of Epicycloidal and Involute Teeth for Inside Gear—Failure of the Odontographs to Meet Certain Practical Cases

      • By C. W. MacCord on July 30, 1881

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      More in the July 30, 1881 issue of Scientific American
      • Ensilage
      • Jottings about Snakes
      • Saddle Horses
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