Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797909 | Remotely programmable telephone answering system with immediate verification upon entry | John F. Mastromoro, Richard W. French | 1989-01-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797909 | Remotely programmable telephone answering system with immediate verification upon entry | John F. Mastromoro, Richard W. French | 1989-01-10 |