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3598230
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Patent number 3,598,230
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Issue date Aug 10, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3515259
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Patent number 3,515,259
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Issue date Jun 2, 1970
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3447668
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Patent number 3,447,668
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Issue date Jun 3, 1969
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3361249
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Patent number 3,361,249
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Issue date Jan 2, 1968
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2983393
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Patent number 2,983,393
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Issue date May 9, 1961
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1424249
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Patent number 1,424,249
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Issue date Aug 1, 1922
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1337351
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Patent number 1,337,351
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Issue date Apr 20, 1920
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL