Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802053 | Control circuitry including phase failure relay | John S. Hoelzer, James T. Libert | 1989-01-31 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4802053 | Control circuitry including phase failure relay | John S. Hoelzer, James T. Libert | 1989-01-31 |