Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701711 | Hanger assembly for lagging panel | Gary John Bases, Douglas J. DeVault, William Joseph Ferkile | 1997-12-30 |
| 5692457 | Energy absorbing tube support for furnace | George H. Harth, III, Dennis R. Shiffer, Robert W. Wewer | 1997-12-02 |