Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6422611 | Contractible joint device for metal conduit | Yushi Zhou, Yuefang Liu, Chicheng Luo, Gengwu LI, Jiajing Pan +10 more | 2002-07-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6422611 | Contractible joint device for metal conduit | Yushi Zhou, Yuefang Liu, Chicheng Luo, Gengwu LI, Jiajing Pan +10 more | 2002-07-23 |