Horst-Lothar Erfurt

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of a hollow body of revolution and/or co...
- Patent number 3,943,867
- Issue date Mar 16, 1976
- Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft
- Horst-Lothar Erfurt
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...