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Trailer dumper
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Patent number 5,458,451
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Issue date Oct 17, 1995
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Columbia Trailer Co.
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Kenneth A. Bratlie
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Trailer dumper
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Patent number 5,344,271
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Issue date Sep 6, 1994
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Columbia Trailer Co., Inc.
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Kenneth A. Bratlie
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Trailer dumper
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Patent number 5,080,548
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Issue date Jan 14, 1992
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Columbia Trailer Co., Inc.
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Kenneth A. Bratlie
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL