Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862324 | Switchgear enclosure and method of fabrication | Thomas Ernst | 1989-08-29 |
| 4815237 | Sealing arrangement for enclosure having an access door | Edmund S. Dizon | 1989-03-28 |
| 4806710 | Mechanical door interlock for electrical equipment enclosure | Edmund S. Dizon, Kenneth Tso | 1989-02-21 |