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Wedge zipper
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Patent number 5,558,439
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Issue date Sep 24, 1996
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Minigrip Inc.
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Paul A. Tilman
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Foamed zipper
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Patent number 5,520,463
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Issue date May 28, 1996
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Minigrip, Inc.
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Paul A. Tilman
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Conveyor belt zipper
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Patent number 5,246,100
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Issue date Sep 21, 1993
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Illinois Tool Works, Inc.
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James W. Stone
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Closure for sliderless zipper bags
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Patent number 5,211,481
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Issue date May 18, 1993
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Minigrip, Inc.
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Paul A. Tilman
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Hinged zipper
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Patent number 5,071,689
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Issue date Dec 10, 1991
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Zip-Pak Incorporated
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Paul A. Tilman
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Tape carried pre-cut zipper
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Patent number 5,024,537
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Issue date Jun 18, 1991
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Zip-Pak Incorporated
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Paul A. Tilman
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Leak resistant zipper
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Patent number 4,890,935
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Issue date Jan 2, 1990
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Minigrip, Inc.
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Steven Ausnit
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A44 - HABERDASHERY JEWELLERY
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Carrier tape
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Patent number 4,708,245
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Issue date Nov 24, 1987
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Illinois Tool Works Inc.
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Hugo Boeckmann
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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