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Top pour shroud
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Patent number 4,589,465
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Issue date May 20, 1986
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LTV Steel Company, Inc.
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Charles C. Gerding
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B22 - CASTING POWDER METALLURGY
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Railway ingot mold car
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Patent number 4,357,125
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Issue date Nov 2, 1982
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Jones & Laughlin Steel Corporation
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Charles C. Gerding
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B61 - RAILWAYS
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Tilting tundish
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Patent number 4,073,334
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Issue date Feb 14, 1978
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Jones & Laughlin Steel Corporation
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Charles C. Gerding
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B22 - CASTING POWDER METALLURGY
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