Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828703 | Method for replacing PCB-containing coolants in electrical induction apparatus with substantially PCB-free dielectric coolants | — | 1989-05-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828703 | Method for replacing PCB-containing coolants in electrical induction apparatus with substantially PCB-free dielectric coolants | — | 1989-05-09 |