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Dust return system
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Patent number 5,209,563
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Issue date May 11, 1993
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CMI Corporation
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George W. Swisher
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Air tight storage silo
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Patent number 4,957,221
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Issue date Sep 18, 1990
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CMI Corporation
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Stuart W. Murray
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Twin bin self erect silo
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Patent number 4,917,560
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Issue date Apr 17, 1990
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CMI Corporation
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Stuart W. Murray
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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