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Process of magnetic media milling
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Patent number 5,183,214
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Issue date Feb 2, 1993
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E. I. Du Pont de Nemours and Company
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Howard Zakheim
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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Magnetic media mill
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Patent number 5,022,592
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Issue date Jun 11, 1991
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E. I. Du Pont de Nemours and Company
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Howard Zakheim
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...