Johann Stiebellehner

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Pottschach, AT

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Patents Grantslast 30 patents

Information Patent Grant
Method of making seamless tubing
- Patent number 4,432,811
- Issue date Feb 21, 1984
- Vereinigte Edelstahlwerke Aktiengesellschaft
- Johann Stiebellehner
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...