Arne Vingerhagen

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Sandnes, NO

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Patents Grantslast 30 patents

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Device for joining of pipelines
- Patent number 4,971,307
- Issue date Nov 20, 1990
- Den Norske Stats Oljeselskap A.S.
- Kai Killerud
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...