Inventor
VARGERVIK KRISTIAN
NO4 patents
Patents
4 patentsUS7591212B2Sep 22, 2009
Connector for perforating gun tandem
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US7360487B2Apr 22, 2008
Connector for perforating gun tandem
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US6679323B2Jan 20, 2004
Severe dog leg swivel for tubing conveyed perforating
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US7044236B2May 16, 2006
Shot direction indicating device
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