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Copper smelting system
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Patent number 5,194,213
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Issue date Mar 16, 1993
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Inco Limited
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Carlos M. Diaz
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Composite structure
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Patent number 4,996,115
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Issue date Feb 26, 1991
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Inco Limited
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Thijs Eerkes
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B32 - LAYERED PRODUCTS
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Pyrometallurgical copper refining
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Patent number 4,830,667
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Issue date May 16, 1989
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Inco Limited
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Samuel W. Marcuson
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Copper smelting with calcareous flux
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Patent number 4,802,917
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Issue date Feb 7, 1989
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Inco Limited
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Grigori S. Victorovich
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Flash smelting process
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Patent number 4,615,729
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Issue date Oct 7, 1986
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Inco Limited
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Grigori S. Victorovich
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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