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3596751
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Patent number 3,596,751
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Issue date Aug 3, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3122277
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Patent number 3,122,277
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Issue date Feb 25, 1964
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3077972
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Patent number 3,077,972
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Issue date Feb 19, 1963
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2545140
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Patent number 2,545,140
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Issue date Mar 13, 1951
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2545141
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Patent number 2,545,141
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Issue date Mar 13, 1951
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL