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Concrete surface retarders
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Patent number 7,037,367
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Issue date May 2, 2006
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W. R. Grace & Co.-Conn.
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John Mauchamp
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Concrete hardening retarder
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Patent number 6,730,764
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Issue date May 4, 2004
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Daicel-Huels Ltd.
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Toru Ikuta
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Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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Non-slip artificial stone
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Patent number 6,365,662
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Issue date Apr 2, 2002
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Doppel Co., Ltd.
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Mieko Sakai
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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Cementitious products
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Patent number 6,159,401
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Issue date Dec 12, 2000
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Entwicklungsgesellschaft Wolfgang Hoesch Gdbr
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Wolfgang Hoesch
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B44 - DECORATIVE ARTS
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3778290
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Patent number 3,778,290
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Issue date Dec 11, 1973
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C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
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3772051
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Patent number 3,772,051
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Issue date Nov 13, 1973
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B44 - DECORATIVE ARTS
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3535135
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Patent number 3,535,135
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Issue date Oct 20, 1970
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B28 - WORKING CEMENT, CLAY, OR STONE
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3390496
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Patent number 3,390,496
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Issue date Jul 2, 1968
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B28 - WORKING CEMENT, CLAY, OR STONE