Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6901032 | Timepiece from which sunrise and sunset time can be determined | Yoon-hyoung Eo | 2005-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6901032 | Timepiece from which sunrise and sunset time can be determined | Yoon-hyoung Eo | 2005-05-31 |