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      Advocate for Science

      Scientific American August 20, 1921

      Painting with Metal Spray

      How Protective Coatings are Shot into Place Under the Latest Procedure

      • By Robert G. Skerrett

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      More in the August 20, 1921 issue of Scientific American
      • Cement for Leather Driving Belts
      • Simplifying the Coupling of Trains, Sucking the Cargo Out of a Ship
      • Winning Foreign Film Markets
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