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Plastic bag manufacturing process
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Patent number 6,186,933
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Issue date Feb 13, 2001
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Bob Dematteis Co.
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Robert B. Dematteis
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Plastic bag bundling system
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Patent number 6,171,226
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Issue date Jan 9, 2001
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Bob Dematteis Co.
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Robert B. Dematteis
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Flat bottomed plastic bag
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Patent number 6,095,687
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Issue date Aug 1, 2000
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Bob Dematteis Co.
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Robert B. Dematteis
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Enclosure and method for making the enclosure
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Patent number 5,292,300
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Issue date Mar 8, 1994
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Winkler & Duennebier Maschinenfabrik und Eisengiesserei KG
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Martin Bluemle
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Method of making lined square bottom bag
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Patent number 5,149,315
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Issue date Sep 22, 1992
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American Packaging Corporation
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Jeffrey D. Muhs
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3896709
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Patent number 3,896,709
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Issue date Jul 29, 1975
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3896714
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Patent number 3,896,714
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Issue date Jul 29, 1975
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3855907
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Patent number 3,855,907
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Issue date Dec 24, 1974
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3853040
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Patent number 3,853,040
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Issue date Dec 10, 1974
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3599539
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Patent number 3,599,539
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Issue date Aug 17, 1971
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3564979
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Patent number 3,564,979
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Issue date Feb 23, 1971
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3554099
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Patent number 3,554,099
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Issue date Jan 12, 1971
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3533330
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Patent number 3,533,330
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Issue date Oct 13, 1970
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3469506
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Patent number 3,469,506
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Issue date Sep 30, 1969
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD
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3374714
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Patent number 3,374,714
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Issue date Mar 26, 1968
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL