Dirk Ringhand

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Ulm, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for manufacturing thin-walled pipes
- Patent number 6,086,819
- Issue date Jul 11, 2000
- Erbsloh Aktiengesellschaft
- Bernhard Commandeur
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...