Svein Egil Vestersjo

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Hundvaag, NO

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Patents Grantslast 30 patents

Information Patent Grant
Safety interlock for control lines
- Patent number 7,717,184
- Issue date May 18, 2010
- Weatherford/Lamb, Inc.
- Gisle Vold
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
SAFETY INTERLOCK FOR CONTROL LINES
- Publication number 20070137868
- Publication date Jun 21, 2007
- Gisle Vold
- E21 - EARTH DRILLING MINING