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Plastic film joining method
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Issue date Feb 9, 2016
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Totani Corporation
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Mikio Totani
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Sealed bags of plastic materials
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Patent number 4,373,979
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Issue date Feb 15, 1983
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Workman Bag Company Ltd.
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Mirek Planeta
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Envelope
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Patent number 4,308,988
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Issue date Jan 5, 1982
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Jan Jiveman
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3749049
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Patent number 3,749,049
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Issue date Jul 31, 1973
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2684613
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Patent number 2,684,613
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Issue date Jul 27, 1954
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2220874
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Issue date Nov 5, 1940
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B31 - MAKING ARTICLES OF PAPER OR CARDBOARD WORKING PAPER OR CARDBOARD