Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7739980 | Apparatus for manufacturing steel tube and method for manufacturing the same | Gi Hyeoug Kim, Yong-Kil Kim, Sun Chang Kim, Jae Pyeong Sim, Jong-seo KIM | 2010-06-22 |