Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5602904 | System for controlling a call termination on the basis of caller data in a private switched telephone system | Katsuyuki Hanai | 1997-02-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5602904 | System for controlling a call termination on the basis of caller data in a private switched telephone system | Katsuyuki Hanai | 1997-02-11 |