Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865556 | Electrical switch device with non-metallic mounting straps and automatic grounding | Winston Campbell, Emma Levin | 1989-09-12 |
| 4854885 | Electrical outlet receptacle with non-metallic mounting strap and automatic grounding | David Herzfeld | 1989-08-08 |
| 4833439 | Unitary switch and circuit breaker | Emma Levin | 1989-05-23 |
| 4797988 | Method and tool for preparing multi-conductor cable | Yuliy Rushansky | 1989-01-17 |