Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10404863 | Base phone and additional phone implementation, answering, calling, and intercom method, and IP terminal | Yijin Yang | 2019-09-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10404863 | Base phone and additional phone implementation, answering, calling, and intercom method, and IP terminal | Yijin Yang | 2019-09-03 |