Derek J. Brooks

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Ashby-de-la-Zouche, GB

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Patents Grantslast 30 patents

Information Patent Grant
Fluid supply system to rotary cutter heads on mining machines
- Patent number 4,643,483
- Issue date Feb 17, 1987
- Coal Industry (Patents) Limited
- Derek J. Brooks
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotary cutter heads for mineral mining machines
- Patent number 4,568,128
- Issue date Feb 4, 1986
- Coal Industry (Patents) Ltd.
- Albert G. French
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining equipment
- Patent number 4,315,658
- Issue date Feb 16, 1982
- Coal Industry (Patents) Limited
- Albert G. French
- E21 - EARTH DRILLING MINING