Hans-Peter Griess

Follow

Person

Duisburg, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Process and device for preventing nonparallelism in beam sections
- Patent number 5,792,418
- Issue date Aug 11, 1998
- Mannesmann Aktiengesellschaft
- Roland Krengel
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Edging roll pair for edging flange edges of symmetrical steel sections
- Patent number 5,394,724
- Issue date Mar 7, 1995
- Mannesmann Aktiengesellschaft
- Hans-Peter Griess
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...