Jens Sandahl S.o slashed.rensen

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing tubular member having integral exterior pro...
- Patent number 5,881,595
- Issue date Mar 16, 1999
- Norsk Hydro a.s
- Jens Sandahl S.o slashed.rensen
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...