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Filter sleeve for tubular filter core
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Issue date Aug 24, 1999
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Sonoco Development, Inc.
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Gerd Rieker
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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Filter sleeve for tubular filter core
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Patent number 5,699,683
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Issue date Dec 23, 1997
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Sonoco Products Company, Inc.
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Gerd Rieker
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D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
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Independent-stroke ejection system
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Issue date Jul 13, 1993
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Crellin, Inc.
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Gerd T. Rieker
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL