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3835983
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Patent number 3,835,983
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Issue date Sep 17, 1974
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3743080
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Patent number 3,743,080
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Issue date Jul 3, 1973
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3667590
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Patent number 3,667,590
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Issue date Jun 6, 1972
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3648828
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Patent number 3,648,828
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Issue date Mar 14, 1972
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3133628
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Patent number 3,133,628
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Issue date May 19, 1964
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL