Oystein Kalvenes

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Solheimsvik, NO

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Patents Grantslast 30 patents

Information Patent Grant
Cement slurry
- Patent number 5,158,613
- Issue date Oct 27, 1992
- Norsk Hydro a.s
- Jon P. Sargeant
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES