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Classifier for powdery material
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Patent number 5,201,422
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Issue date Apr 13, 1993
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Kubota Corporation
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Yoshitaka Ihara
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B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
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Pulverizing apparatus
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Patent number 5,042,729
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Issue date Aug 27, 1991
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Kubota, Ltd.
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Yoshitaka Ihara
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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Vertical grinding mill
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Patent number 4,660,776
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Issue date Apr 28, 1987
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Kubota Ltd.
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Iwao Ikebuchi
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...