Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888092 | Primary paper sheet having a surface layer of pulp fines | Zenon C. Prusas, Gene W. Wisecup | 1989-12-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888092 | Primary paper sheet having a surface layer of pulp fines | Zenon C. Prusas, Gene W. Wisecup | 1989-12-19 |