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Flotation apparatus
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Patent number 5,770,050
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Issue date Jun 23, 1998
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Voith Sulzer Stoffaufbereitung GmbH
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Michael Trefz
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Flotation cell and injector
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Patent number 5,465,848
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Issue date Nov 14, 1995
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J. M. Voith GmbH
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Gerhard Veh
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Hydrocyclone
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Patent number 5,078,549
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Issue date Jan 7, 1992
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J. M. Voith GmbH
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Peter Schweiss
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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Defrothing method and apparatus
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Patent number 4,818,377
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Issue date Apr 4, 1989
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J. M. Voith GmbH
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Peter Schweiss
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Flotation container or cell
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Patent number 4,726,897
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Issue date Feb 23, 1988
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J. M. Voith, GmbH
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Peter Schweiss
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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