Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468036 | Adjustable crank of swinging mechanism | Jiajun Song, Hongcai Zhao | 2002-10-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468036 | Adjustable crank of swinging mechanism | Jiajun Song, Hongcai Zhao | 2002-10-22 |