Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668856 | Method and system for screening calls directed to an international telephone operator | Kaoru Nishimatsu, Shin-ichi Sakayori | 1997-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668856 | Method and system for screening calls directed to an international telephone operator | Kaoru Nishimatsu, Shin-ichi Sakayori | 1997-09-16 |