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Hot work die block
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Patent number 5,244,626
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Issue date Sep 14, 1993
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A. Finkl & Sons Co.
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Charles W. Finkl
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Low alloy steel product
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Patent number 5,059,389
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Issue date Oct 22, 1991
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A. Finkl & Sons Co.
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Charles W. Finkl
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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Electric arc furnace
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Patent number 4,887,277
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Issue date Dec 12, 1989
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A. Finkl & Sons Co.
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Charles W. Finkl
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F27 - FURNACES KILNS OVENS RETORTS
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Low alloy die steel (Type F)
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Patent number 3,970,448
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Issue date Jul 20, 1976
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William Wilson
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...