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Battery separation
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Patent number 5,985,484
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Issue date Nov 16, 1999
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Amtek Research International LLC
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James Young
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator
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Patent number 5,894,055
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Issue date Apr 13, 1999
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Amtek Research International LLC
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James Young
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H01 - BASIC ELECTRIC ELEMENTS
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Battery separator and method of making
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Patent number 5,789,103
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Issue date Aug 4, 1998
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AMTEK Research International LLC
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James Young
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Battery separator
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Patent number 5,679,479
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Issue date Oct 21, 1997
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AMTEK Research International LLC
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James Young
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H01 - BASIC ELECTRIC ELEMENTS
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Microporous filaments and fibers
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Patent number 5,093,197
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Issue date Mar 3, 1992
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Entek Manufacturing Inc.
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Robert E. Howard
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D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
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Printed microporous material
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Patent number 4,861,644
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Issue date Aug 29, 1989
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PPG Industries, Inc.
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James Young
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Plate feed apparatus
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Patent number 4,462,745
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Issue date Jul 31, 1984
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Peter E. Johnson
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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