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Material bed roller mill
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Patent number 5,096,131
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Issue date Mar 17, 1992
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Krupp Polysius AG
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Norbert Patzelt
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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Roller mill
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Patent number 4,694,994
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Issue date Sep 22, 1987
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Krupp Polysius AG
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Heinrich Henne
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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