Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9820054 | Electromagnetic transducer having a suspending ring disposed for increased vibrating space | Zhongping Li | 2017-11-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9820054 | Electromagnetic transducer having a suspending ring disposed for increased vibrating space | Zhongping Li | 2017-11-14 |