William Harrison

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Stirling, GB

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Patents Grantslast 30 patents

Information Patent Grant
Selectively phased water supply of a cutter head
- Patent number 5,054,858
- Issue date Oct 8, 1991
- Anderson Group PLC
- William Harrison
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining machine adapted for attachment of continuous miner cutter bo...
- Patent number 4,921,309
- Issue date May 1, 1990
- Anderson Strathclyde Olc
- William Harrison
- E21 - EARTH DRILLING MINING