Tom C. Bithell

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Chorley, GB

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Patents Grantslast 30 patents

Information Patent Grant
Mine roof supports
- Patent number 5,039,257
- Issue date Aug 13, 1991
- Gullick Dobson Limited
- Tom C. Bithell
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine roof supports
- Patent number 4,792,261
- Issue date Dec 20, 1988
- Gullick Dobson Limited
- Tom C. Bithell
- E21 - EARTH DRILLING MINING