Marten Haukjem

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Hovik, NO

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Patents Grantslast 30 patents

Information Patent Grant
Device for use in borehole-seismic measurements at sea
- Patent number 4,660,184
- Issue date Apr 21, 1987
- Geco Well Services A.S.
- Marten Haukjem
- G10 - MUSICAL INSTRUMENTS ACOUSTICS