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Arne Austefjord
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Tronesveien, NO
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Patents Grants
last 30 patents
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Patent Grant
Electric winch
Patent number
7,185,881
Issue date
Mar 6, 2007
National-Oilwell, L.P.
Ivar Drarvik
B66 - HOISTING LIFTING HAULING
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last 30 patents
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Patent Application
ELECTRIC WINCH
Publication number
20050253125
Publication date
Nov 17, 2005
National Oilwell, L.P.
Ivar Drarvik
B66 - HOISTING LIFTING HAULING