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Grain refining
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Patent number 4,793,971
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Issue date Dec 27, 1988
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Aluminum Company of America
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Charles E. Eckert
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Production of intermetallic particles
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Patent number 4,792,431
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Issue date Dec 20, 1988
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Aluminum Company of America
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Charles E. Eckert
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Alloying system
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Patent number 4,688,771
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Issue date Aug 25, 1987
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Aluminum Company of America
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Charles E. Eckert
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Process for adding material to molten media
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Patent number 4,689,199
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Issue date Aug 25, 1987
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Aluminum Company of America
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Charles E. Eckert
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Metal treatment system
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Patent number 4,392,888
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Issue date Jul 12, 1983
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Aluminum Company of America
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Charles E. Eckert
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...