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Tear-assist blade
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Patent number 11,241,858
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Issue date Feb 8, 2022
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PREGIS INNOVATIVE PACKAGING LLC
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Thomas D. Wetsch
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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Tear-assist blade
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Patent number 10,618,239
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Issue date Apr 14, 2020
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PREGIS INNOVATIVE PACKAGING LLC
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Thomas D. Wetsch
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Tear-assist blade
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Patent number 9,457,982
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Issue date Oct 4, 2016
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PREGIS INNOVATIVE PACKAGING LLC
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Thomas D. Wetsch
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Expandable chuck
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Patent number 3,972,488
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Issue date Aug 3, 1976
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International Paper Company
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Charles A. Lee
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3841620
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Patent number 3,841,620
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Issue date Oct 15, 1974
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3122361
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Patent number 3,122,361
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Issue date Feb 25, 1964
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL