Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7866055 | Level provided with impact-absorbing end caps | Yuexiang Zhang, Jianjun Shuang | 2011-01-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7866055 | Level provided with impact-absorbing end caps | Yuexiang Zhang, Jianjun Shuang | 2011-01-11 |