Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643366 | Control of access to the call completion on busy link service in a private telecommunication network | Cao Thanh Phan | 2003-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6643366 | Control of access to the call completion on busy link service in a private telecommunication network | Cao Thanh Phan | 2003-11-04 |