Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597991 | Enclosed electrical power disconnect switches and circuit breaker | Hai Chen, Leo V. Zirpoli | 1997-01-28 |
| 4196388 | Apparatus for monitoring high alternating voltages | Geoffrey Weller | 1980-04-01 |