Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8806908 | Dual key bi-step lock | Jun Hu, Zhongwei Cao | 2014-08-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8806908 | Dual key bi-step lock | Jun Hu, Zhongwei Cao | 2014-08-19 |