Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5164991 | Variable input amplified speaker with improved power input section | Thomas J. Johnson, James W. Lester | 1992-11-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5164991 | Variable input amplified speaker with improved power input section | Thomas J. Johnson, James W. Lester | 1992-11-17 |