Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10703129 | Electric pencil sharpener | Changhai Dai | 2020-07-07 |
| 10556363 | Electric stapler | Changhai Dai | 2020-02-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10703129 | Electric pencil sharpener | Changhai Dai | 2020-07-07 |
| 10556363 | Electric stapler | Changhai Dai | 2020-02-11 |