Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889674 | Method for the manufacture of dimensionally stable, liquid-impermeable, flexible press bands | Heinz Joos | 1989-12-26 |
| 4859396 | Process of producing tension-proof, impermeable, flexible bands, in particular for presses to dewater fiber material webs | Heinz Joos | 1989-08-22 |
| 4832090 | Paper making wire | Fritz Vohringer | 1989-05-23 |