Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5301432 | Ring with movable blade | Derry J. Richardson | 1994-04-12 |
| 5297829 | Security lock for door | — | 1994-03-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5301432 | Ring with movable blade | Derry J. Richardson | 1994-04-12 |
| 5297829 | Security lock for door | — | 1994-03-29 |