Wolfgang Ostertag

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Walddorfhaslach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for producing round-rolled parts for heat exch...
- Patent number 4,893,391
- Issue date Jan 16, 1990
- Kuhlerfabrik Langerer & Reich GMBH & Co. KG
- Werner Zobel
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...