John E. Frazier

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Washington, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Doghouse and feeder enclosure for glass furnace
- Patent number 4,197,109
- Issue date Apr 8, 1980
- Frazier-Simplex, Inc.
- John E. Frazier
- C03 - GLASS MINERAL OR SLAG WOOL