Peter R. Frazier

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Austintown, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Carbon flue wall and method of making
- Patent number 5,078,595
- Issue date Jan 7, 1992
- Howard L. Roenigk
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Refractory block for rotary kiln
- Patent number 4,975,049
- Issue date Dec 4, 1990
- General Refractories Company
- Howard L. Roenigk
- F27 - FURNACES KILNS OVENS RETORTS