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      Scientific American November 09, 1889

      On Eikonogen, a New Photographic Developer

      • By G. D. Liveing on November 9, 1889

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      More in the November 09, 1889 issue of Scientific American
      • Patents- November 9, 1893
      • English and American Railways Compared
      • The Canet Barbette Turret
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