Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660806 | Process for removing lead from sandblasting wastes containing paint chips | William E. Fristad, Michael J. Virnig | 1997-08-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660806 | Process for removing lead from sandblasting wastes containing paint chips | William E. Fristad, Michael J. Virnig | 1997-08-26 |