Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882011 | Device for generating negative pressure inside a mantle of a revolving roll | Pekka Eskelinen, Seppo Rantanen | 1989-11-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882011 | Device for generating negative pressure inside a mantle of a revolving roll | Pekka Eskelinen, Seppo Rantanen | 1989-11-21 |