Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885444 | Switchgear operating mechanism | Lawrence W. Lazar | 1989-12-05 |
| 4879441 | Dielectric barrier for a vacuum interrupter | Sidney R. Hamm | 1989-11-07 |
| 4855862 | Recloser undervoltage lockout mechanism | Daniel Schreiber | 1989-08-08 |