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Well cementing
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Patent number 9,758,713
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Issue date Sep 12, 2017
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Fritz Industries, Inc
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James C. Ferrell
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Well cementing
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Patent number 9,714,372
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Issue date Jul 25, 2017
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FRITZ INDUSTRIES, INC. A CORP. OF TEXAS
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James C. Ferrell
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
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Well cementing
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Patent number 9,321,953
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Issue date Apr 26, 2016
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Fritz Industries, Inc
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James C. Ferrell
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C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...