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Bar for a road milling drum
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Patent number 5,647,641
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Issue date Jul 15, 1997
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Kennametal Inc.
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William P. Sulosky
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B28 - WORKING CEMENT, CLAY, OR STONE
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Milled roadway surface
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Patent number 5,639,180
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Issue date Jun 17, 1997
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Kennametal Inc.
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William P. Sulosky
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B28 - WORKING CEMENT, CLAY, OR STONE
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