Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9822555 | Safety locking mechanism for lockset | Zhangping Gong | 2017-11-21 |
| 9657500 | Electronic-mechanical dual control lock | Jianping Sun | 2017-05-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9822555 | Safety locking mechanism for lockset | Zhangping Gong | 2017-11-21 |
| 9657500 | Electronic-mechanical dual control lock | Jianping Sun | 2017-05-23 |