Jack L. Edwards

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Dallas, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Concrete admixture device and method of using same
- Patent number 5,120,367
- Issue date Jun 9, 1992
- Fritz Chemical Company
- Dwight Smith
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Concrete admixture device and method of using same
- Patent number 4,961,790
- Issue date Oct 9, 1990
- Fritz Chemical Company
- Dwight Smith
- B28 - WORKING CEMENT, CLAY, OR STONE