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High precision gaging block
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Patent number 4,586,266
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Issue date May 6, 1986
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Westinghouse Electric Corp.
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Hans E. Leumann
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G01 - MEASURING TESTING
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Protective refractory member
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Patent number 4,182,609
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Issue date Jan 8, 1980
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Bloom Engineering Company, Inc.
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James E. Hovis
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F27 - FURNACES KILNS OVENS RETORTS
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Closure members
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Patent number 4,145,259
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Issue date Mar 20, 1979
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Bloom Engineering Company, Inc.
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Hans E. Leumann
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C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...