Grover C. Ratliff Jr.

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Hurst, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
System for mixing cementitious construction materials
- Patent number 5,149,192
- Issue date Sep 22, 1992
- Mixer Products, Inc.
- Alton B. Hamm
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Navigational charting and calculating device
- Patent number 3,983,630
- Issue date Oct 5, 1976
- Hamm Systems
- Alton B. Hamm
- G06 - COMPUTING CALCULATING COUNTING