Gerald W. Burkhart

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Monaca, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Lightweight frothed gypsum structural units
- Patent number 4,265,964
- Issue date May 5, 1981
- ARCO Polymers, Inc.
- Gerald W. Burkhart
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES