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Roller mill construction
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Patent number 4,491,280
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Issue date Jan 1, 1985
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Gebr. Pfeiffer AG
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Ottmar Bacharach
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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Bowl mill pulverizer
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Patent number 4,465,240
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Issue date Aug 14, 1984
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Gebr. Pfeiffer AG
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Ottmar Bacharach
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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