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3758042
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Patent number 3,758,042
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Issue date Sep 11, 1973
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3628741
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Patent number 3,628,741
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Issue date Dec 21, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3550871
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Patent number 3,550,871
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Issue date Dec 29, 1970
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3166104
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Patent number 3,166,104
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Issue date Jan 19, 1965
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2957635
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Patent number 2,957,635
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Issue date Oct 25, 1960
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL