Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5272442 | Electrical feed-through bushing cavity insulation detector | Charles M. Martin, Augusto D. Hernandez | 1993-12-21 |
| 5140270 | Electrical feed-through bushing cavity insulation detector | Charles M. Martin | 1992-08-18 |