Trenwyth Industris, Inc.

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Emigsville, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Faced masonry units and facing composition therefor
- Patent number 4,499,142
- Issue date Feb 12, 1985
- Trenwyth Industris, Inc.
- Alan C. Kingston
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES