Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6738633 | Method for providing number portability of mobile phone | Won Chul Chung, Chung Il Kim | 2004-05-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6738633 | Method for providing number portability of mobile phone | Won Chul Chung, Chung Il Kim | 2004-05-18 |