Harold D. Prior Jr.

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State College, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Spray insulating coating for refractory articles
- Patent number 5,944,888
- Issue date Aug 31, 1999
- North American Refractories Co.
- Regis M. Perich
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Spray insulating coating for refractory articles
- Patent number 5,766,686
- Issue date Jun 16, 1998
- North American Refractories Co.
- Regis M. Perich
- B22 - CASTING POWDER METALLURGY