Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5863197 | Solid flight conveying screw for furnace | David M. Hoffman | 1999-01-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5863197 | Solid flight conveying screw for furnace | David M. Hoffman | 1999-01-26 |