Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5088068 | Hand-held underwater distance measurement device | James E. Richardson | 1992-02-11 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5088068 | Hand-held underwater distance measurement device | James E. Richardson | 1992-02-11 |