Harold L. Phillips

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Oochita Lake, NM, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming expanded cellular volcanic ash
- Patent number 4,238,430
- Issue date Dec 9, 1980
- United States Vacuumite Corporation
- Harold L. Phillips
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES