Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809124 | High-energy low-voltage surge arrester | — | 1989-02-28 |
| 4803436 | Method and apparatus for evaluating the condition of a gapless metal-oxide varistor lightning arrester used for protecting a distribution transformer | Gordon E. Zaks | 1989-02-07 |