Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11638483 | Chair backrest mechanism, chair frame and chair | Xiqi SUN, Xiaozhao ZHANG, QIU-JIANG XU | 2023-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11638483 | Chair backrest mechanism, chair frame and chair | Xiqi SUN, Xiaozhao ZHANG, QIU-JIANG XU | 2023-05-02 |