Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6851287 | Lock having a quick unlocking function | Zhen Yang, Mu-Gui Yang | 2005-02-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6851287 | Lock having a quick unlocking function | Zhen Yang, Mu-Gui Yang | 2005-02-08 |