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3559795
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Patent number 3,559,795
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Issue date Feb 2, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3490624
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Patent number 3,490,624
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Issue date Jan 20, 1970
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3204789
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Patent number 3,204,789
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Issue date Sep 7, 1965
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3073462
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Patent number 3,073,462
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Issue date Jan 15, 1963
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1815440
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Patent number 1,815,440
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Issue date Jul 21, 1931
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL