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Method of recovering metal values from ores
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Patent number 8,038,767
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Issue date Oct 18, 2011
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Drinkard Metalox, Inc.
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William F. Drinkard, Jr.
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Nickel-laterite process
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Patent number 8,016,913
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Issue date Sep 13, 2011
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Drinkard Metalox, Inc.
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William F. Drinkard, Jr.
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...