Walter A. McCray

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Bearlake, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Device for piercing an obstruction in a well-block opening of a lad...
- Patent number 5,167,902
- Issue date Dec 1, 1992
- Tri-C Corporation
- Walter A. McCray
- B22 - CASTING POWDER METALLURGY