Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467276 | Pulse tube refrigerator | Woo-Suk Chung | 2002-10-22 |
| 6462887 | Zoom lens barrel structure of zoom camera | Sung-Wook Choi, Nae-jin Jo | 2002-10-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467276 | Pulse tube refrigerator | Woo-Suk Chung | 2002-10-22 |
| 6462887 | Zoom lens barrel structure of zoom camera | Sung-Wook Choi, Nae-jin Jo | 2002-10-08 |