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Attrition mill
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Patent number 5,797,550
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Issue date Aug 25, 1998
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Mount Isa Mines Limited
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Peter Woodall
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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Mill, in particular agitating mill
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Patent number 4,915,307
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Issue date Apr 10, 1990
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Erich Netzsch GmbH & Co. Holding Kg
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Norbert Klimaschka
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...