Roger William Riffle

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Massillon, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Coating for concrete structures
- Patent number 5,962,579
- Issue date Oct 5, 1999
- The Goodyear Tire & Rubber Company
- Gerald Owen Schulz
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES