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Tool for producing a filter cartridge
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Patent number 6,582,213
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Issue date Jun 24, 2003
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Firma Carl Freudenberg
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Udo Michaelis
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Filter insert
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Patent number 5,958,097
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Issue date Sep 28, 1999
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Firma Carl Freudenberg
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Ulrich Schlor
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method for manufacturing a filter insert
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Patent number 5,863,482
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Issue date Jan 26, 1999
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Firma Carl Freudenberg
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Ulrich Schlor
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Pocket filter
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Patent number 5,695,535
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Issue date Dec 9, 1997
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Carl Freudenberg
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Dieter Hintenlang
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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