Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642745 | Tank cleaning system using collapsible robotic tank entry vehicle | Kermit R. Arnold | 1997-07-01 |
| 5640982 | Tank cleaning system using collapsible robotic tank entry vehicle | Kermit R. Arnold | 1997-06-24 |