Robert G. Irwin

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Glenshaw, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Preparing magnesium oxychloride and/or oxysulfate cements
- Patent number 4,158,570
- Issue date Jun 19, 1979
- PPG Industries, Inc.
- Robert G. Irwin
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES