Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4901295 | Device comprising a solar cell for winding a barrel spring | Mai T. Xuan | 1990-02-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4901295 | Device comprising a solar cell for winding a barrel spring | Mai T. Xuan | 1990-02-13 |