Nicholas P. Wallis

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Barnwood, GB

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Patents Grantslast 30 patents

Information Patent Grant
System for drilling deviated boreholes
- Patent number 5,602,541
- Issue date Feb 11, 1997
- Baroid Technology, Inc.
- Laurier E. Comeau
- E21 - EARTH DRILLING MINING
Information Patent Grant
System for drilling deivated boreholes
- Patent number 5,410,303
- Issue date Apr 25, 1995
- Baroid Technology, Inc.
- Laurier E. Comeau
- E21 - EARTH DRILLING MINING