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Method of recovering PGM
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Patent number 9,175,365
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Issue date Nov 3, 2015
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Dowa Metals & Mining Co., Ltd.
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Yuzuru Nakamura
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Recovery of metal values from cermet
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Patent number 7,048,774
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Issue date May 23, 2006
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World Resources Company
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Peter T. Halpin
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Recovery of metal values from cermet
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Patent number 6,830,605
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Issue date Dec 14, 2004
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World Resources Company
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Peter T. Halpin
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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2139602
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Patent number 2,139,602
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Issue date Dec 6, 1938
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...