Hermann Leitner

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Langenfeld, DT

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Patents Grantslast 30 patents

Information Patent Grant
Rolling mill
- Patent number 3,930,395
- Issue date Jan 6, 1976
- Schloemann-Siemag Aktiengesellschaft
- Erich Bretschneider
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...