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3484006
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Patent number 3,484,006
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Issue date Dec 16, 1969
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2863474
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Patent number 2,863,474
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Issue date Dec 9, 1958
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2706058
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Patent number 2,706,058
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Issue date Apr 12, 1955
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2606674
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Patent number 2,606,674
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Issue date Aug 12, 1952
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2019451
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Patent number 2,019,451
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Issue date Oct 29, 1935
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1781346
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Patent number 1,781,346
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Issue date Nov 11, 1930
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL