DWK Drahtwerk Köln GmbH

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Patents Grantslast 30 patents

Information Patent Grant
Corrosion-protected tension member of steel
- Patent number 6,322,281
- Issue date Nov 27, 2001
- Dyckerhoff & Widmann Aktiengesellschaft
- Dieter Jungwirth
- D07 - ROPES CABLES OTHER THAN ELECTRIC