Sebastien Arnaud Chevallier

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GD Rijswijk, NL

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for providing a thrust force to an elongate body in a bor...
- Patent number 5,960,895
- Issue date Oct 5, 1999
- Shell Oil Company
- Sebastien Arnaud Chevallier
- E21 - EARTH DRILLING MINING