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3917059
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Patent number 3,917,059
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Issue date Nov 4, 1975
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3651982
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Patent number 3,651,982
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Issue date Mar 28, 1972
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3627193
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Patent number 3,627,193
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Issue date Dec 14, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3567069
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Patent number 3,567,069
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Issue date Mar 2, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2688421
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Patent number 2,688,421
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Issue date Sep 7, 1954
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1688421
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Patent number 1,688,421
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Issue date Oct 23, 1928
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...