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Paul B. Christoff
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Lisle, IL, US
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last 30 patents
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Patent Grant
Method of and means for making reclosable bags and method therefor
Patent number
4,655,862
Issue date
Apr 7, 1987
Minigrip, Incorporated
Paul B. Christoff
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Reclosable bag, material, and method of and means for making same
Patent number
4,617,683
Issue date
Oct 14, 1986
Minigrip, Inc.
Paul B. Christoff
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL