Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11073482 | Multi-functional precious stone testing apparatus and method thereof | Xiuling Zhu | 2021-07-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11073482 | Multi-functional precious stone testing apparatus and method thereof | Xiuling Zhu | 2021-07-27 |