Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8688171 | Method and device for operating telephone directory | Chunling Pan, Xinglin Niu | 2014-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8688171 | Method and device for operating telephone directory | Chunling Pan, Xinglin Niu | 2014-04-01 |