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Device for treating material mixtures
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Patent number 5,088,831
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Issue date Feb 18, 1992
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Sunds Defibrator Industries Aktiebolag
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Rolf B. Reinhall
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Device in grinding apparatus
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Patent number 4,355,767
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Issue date Oct 26, 1982
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Defibrator Aktiebolag
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Inge J. G. Johansson
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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Method of manufacturing fiberboard
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Patent number 4,311,555
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Issue date Jan 19, 1982
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Rolf B. Reinhall
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B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
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Screw press
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Patent number 4,003,304
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Issue date Jan 18, 1977
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Rolf Bertil Reinhall
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D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
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