Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623537 | Telephone message center | Anthony J. Grewe, Howard M. Singer | 1997-04-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5623537 | Telephone message center | Anthony J. Grewe, Howard M. Singer | 1997-04-22 |