Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11141993 | Revolving drum type digital lens printing device | Donghui Chen | 2021-10-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11141993 | Revolving drum type digital lens printing device | Donghui Chen | 2021-10-12 |