Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10442238 | Electric pencil sharpener | Chongting Zheng | 2019-10-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10442238 | Electric pencil sharpener | Chongting Zheng | 2019-10-15 |