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Attrition mill
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Patent number 5,984,213
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Issue date Nov 16, 1999
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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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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...