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3533499
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Patent number 3,533,499
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Issue date Oct 13, 1970
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3442369
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Patent number 3,442,369
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Issue date May 6, 1969
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3324806
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Patent number 3,324,806
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Issue date Jun 13, 1967
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3150766
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Patent number 3,150,766
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Issue date Sep 29, 1964
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2928525
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Patent number 2,928,525
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Issue date Mar 15, 1960
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2886167
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Patent number 2,886,167
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Issue date May 12, 1959
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL