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METALS AND THEIR TREATMENT
Casting Shell Mold (U.S. Patent 2,881,082)
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METALS AND THEIR TREATMENT
Porous Gypsum Mold (Japanese Patent 706 (1956))
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METALS AND THEIR TREATMENT
Porous Gypsum Mold (Japanese Patent 706 (1956))
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METALS AND THEIR TREATMENT
Electropolishing Zirconium (Japanese Patent 10,561 (1957)
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METALS AND THEIR TREATMENT
Bright Dip for Zinc Alloys (U.S. Patent 2,904,413)
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METALS AND THEIR TREATMENT
Electropolishing Tantalum Electrolyte (Japanese Patent 10,562 <br/> (1957))
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METALS AND THEIR TREATMENT
Electropolishing Titanium (Japanese Patent 9060 (1957))
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PYROTECHNICS AND EXPLOSIVES
Military Smoke (U.S. Patent 2,574,466)
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METALS AND THEIR TREATMENT
Silver Dip Brightener
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METALS AND THEIR TREATMENT
Silver Plating Without Cyanide
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