Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682635 | Bridge and road construction and method of removing worn deck structure | Wilbur E. Tolliver | 1997-11-04 |
| 5634312 | Shear bolt connected structural units | Wilbur E. Tolliver | 1997-06-03 |