Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835816 | Twist-off knob | — | 1989-06-06 |
| 4835343 | Two piece face plate for wall box mounted device | Elliot G. Jacoby, Joel S. Spira | 1989-05-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835816 | Twist-off knob | — | 1989-06-06 |
| 4835343 | Two piece face plate for wall box mounted device | Elliot G. Jacoby, Joel S. Spira | 1989-05-30 |