Helmut Pohl

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of tubular bodies
- Patent number 5,026,436
- Issue date Jun 25, 1991
- Schoeller-Bleckmann Gesellschaft m.b.H.
- Helmut Pohl
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of manufacturing nonmagnetic drilling string components
- Patent number 4,919,728
- Issue date Apr 24, 1990
- Vereinigte Edelstahlwerke AG (VEW)
- Heinz Kohl
- C21 - METALLURGY OF IRON