Orville M. Ontkean

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Temecula, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of forming light weight construction sheet goods from recycl...
- Patent number 5,853,634
- Issue date Dec 29, 1998
- Orville M. Ontkean
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES