Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825466 | Telephone interface security device | Richard K. St. John | 1989-04-25 |
| 4803380 | Cover and support plate arrangement for wall mounted devices | Elliot G. Jacoby, Michael J. D'Aleo, David G. Luchaco, Joel S. Spira, Richard A. Wagner +1 more | 1989-02-07 |