Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5397526 | Method for reconfiguring finishing rolls in a plastic sheet fabrication sheetline | James H. Perkins, Howard E. Radel, William N. Calland | 1995-03-14 |
| 4997358 | Apparatus for reconfiguring finishing rolls in a plastic sheet fabrication sheetline | James H. Perkins, Howard E. Radel, William N. Calland | 1991-03-05 |