Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4446336 | Method for recording and updating stored messages in an announcement system | Leslie D. Bethel, Howard A. Kerr, John E. Waninski, Jr. | 1984-05-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4446336 | Method for recording and updating stored messages in an announcement system | Leslie D. Bethel, Howard A. Kerr, John E. Waninski, Jr. | 1984-05-01 |