John H. Waters

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Cheltenham, GB

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Patents Grantslast 30 patents

Information Patent Grant
Roof support suitable for use in mines
- Patent number 4,548,527
- Issue date Oct 22, 1985
- Dowty Mining Equipment Limited
- Christopher J. Bishop
- E21 - EARTH DRILLING MINING
Information Patent Grant
Roof support suitable for use in mines
- Patent number 4,512,686
- Issue date Apr 23, 1985
- Dowty Mining Equipment Limited
- John H. Waters
- E21 - EARTH DRILLING MINING