Elmar Buch

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Essen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing rolled material from oxygen-free copper
- Patent number 5,366,001
- Issue date Nov 22, 1994
- Mannesmann Aktiengesellschaft
- Lev P. Freedman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Dividing gear unit for a roll block
- Patent number 4,807,458
- Issue date Feb 28, 1989
- Fried. KRUPP Gesellschaft mit beschrankter Haftung
- Elmar Buch
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...