Choong-Yul Kim

Follow

Person

Seoul, 156-831, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Production method of multi-gauge strips
- Patent number 6,591,653
- Issue date Jul 15, 2003
- Choong-Yul Kim
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...