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Form liner with backer panel
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Patent number 9,381,671
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Issue date Jul 5, 2016
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SPEC FORMLINERS, INC.
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Andrew Deering
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B28 - WORKING CEMENT, CLAY, OR STONE
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Wall block mold
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Patent number 7,267,321
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Issue date Sep 11, 2007
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Kelly J Morrell
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B28 - WORKING CEMENT, CLAY, OR STONE
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Rustication
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Patent number 6,749,171
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Issue date Jun 15, 2004
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Fukuvi USA, Inc.
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Kyozaburo Takagi
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B28 - WORKING CEMENT, CLAY, OR STONE
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Precast concrete wall system
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Patent number 6,550,215
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Issue date Apr 22, 2003
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PN II, Inc.
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William J. Pulte
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B28 - WORKING CEMENT, CLAY, OR STONE
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Building materials
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Patent number 5,987,831
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Issue date Nov 23, 1999
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Marlux N.V.
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Louis Lamberts-Van Assche
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B44 - DECORATIVE ARTS
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Device for manufacturing stones
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Patent number 4,856,976
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Issue date Aug 15, 1989
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Gebroeders Rook Beheer B.V.
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Cornelis Rook
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B28 - WORKING CEMENT, CLAY, OR STONE
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3662438
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Patent number 3,662,438
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Issue date May 16, 1972
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B28 - WORKING CEMENT, CLAY, OR STONE
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2554110
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Patent number 2,554,110
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Issue date May 22, 1951
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B28 - WORKING CEMENT, CLAY, OR STONE
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2475435
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Patent number 2,475,435
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Issue date Jul 5, 1949
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B28 - WORKING CEMENT, CLAY, OR STONE
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1925733
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Patent number 1,925,733
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Issue date Sep 5, 1933
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B28 - WORKING CEMENT, CLAY, OR STONE
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1693693
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Patent number 1,693,693
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Issue date Dec 4, 1928
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B28 - WORKING CEMENT, CLAY, OR STONE
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1652884
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Patent number 1,652,884
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Issue date Dec 13, 1927
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B28 - WORKING CEMENT, CLAY, OR STONE
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1518581
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Patent number 1,518,581
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Issue date Dec 9, 1924
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B28 - WORKING CEMENT, CLAY, OR STONE