Friedrich Heymann

Follow

Person

Dinslaken, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Hot-rolling process and hot-rolling mill for metal strip
- Patent number 5,694,799
- Issue date Dec 9, 1997
- SMS Schloemann-Siemag Aktiengesellschaft
- Waldemar Wolpert
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...