Christopher Robert Nelsen

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Lindenhurst, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Gypsum anhydrite fillers and process for making same
- Patent number 7,556,791
- Issue date Jul 7, 2009
- United States Gypsum Company
- Michael Lawrence Bolind
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES