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Fire-resistant gypsum fiberboard
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Patent number 6,299,970
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Issue date Oct 9, 2001
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Georgia-Pacific Gypsum Corporation
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Turner W. Richards
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B28 - WORKING CEMENT, CLAY, OR STONE
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Non-asbestos friction material
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Patent number 6,284,815
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Issue date Sep 4, 2001
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Akebono Brake Industry Co. Ltd.
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Shigemi Sasahara
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Intumescent sheet material
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Patent number 5,869,010
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Issue date Feb 9, 1999
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Minnesota Mining and Manufacturing Company
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Roger L. Langer
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Methods of preparing fire doors
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Patent number 5,798,010
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Issue date Aug 25, 1998
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Georgia-Pacific Corporation
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Turner W. Richards
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B28 - WORKING CEMENT, CLAY, OR STONE
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Asbestos replacer
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Patent number 5,637,144
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Issue date Jun 10, 1997
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Burton K. Whatcott
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Non-asbestos flexible sheet material
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Patent number 5,527,599
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Issue date Jun 18, 1996
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T&N Technology Limited
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David G. Hall
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Soft asbestos-free sealing material
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Patent number 5,437,920
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Issue date Aug 1, 1995
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Frenzelit-Werke GmbH & Co. KG
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Gerhard Bauer
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES