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Waterproofing membrane
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Patent number 8,931,229
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Issue date Jan 13, 2015
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W. R. Grace & Co.-Conn.
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Robert A. Wiercinski
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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3508949
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Patent number 3,508,949
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Issue date Apr 28, 1970
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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3394799
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Patent number 3,394,799
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Issue date Jul 30, 1968
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...