Ivar Drarvik

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Heiasvingen, NO

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Patents Grantslast 30 patents

Information Patent Grant
Electric winch
- Patent number 7,185,881
- Issue date Mar 6, 2007
- National-Oilwell, L.P.
- Ivar Drarvik
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC WINCH
- Publication number 20050253125
- Publication date Nov 17, 2005
- National Oilwell, L.P.
- Ivar Drarvik
- B66 - HOISTING LIFTING HAULING