Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4959852 | Telephone answering machine having solid state and magnetic tape storage for outgoing announcements | Alan Dean Michel, William Powell | 1990-09-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4959852 | Telephone answering machine having solid state and magnetic tape storage for outgoing announcements | Alan Dean Michel, William Powell | 1990-09-25 |