Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5265864 | Inverter with a friction/corrugating driver | Mary A. Roux, Donald R. Fess, H. William Gray | 1993-11-30 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5265864 | Inverter with a friction/corrugating driver | Mary A. Roux, Donald R. Fess, H. William Gray | 1993-11-30 |