Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6393776 | Tornado shelter with composite structure and concrete tub encasement | Ian E. McElwain | 2002-05-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6393776 | Tornado shelter with composite structure and concrete tub encasement | Ian E. McElwain | 2002-05-28 |