Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440995 | Vacuum circuit interrupter with on-line vacuum monitoring apparatus | William J. Lange | 1984-04-03 |
| 4181885 | Electrical cell charge energy measuring method and apparatus | John M. Zomp | 1980-01-01 |