Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817400 | Bielastic, warp-knit fabric and its production | Harald Baesgen, Helmut Schillings | 1989-04-04 |
| 4814440 | Process for producing extractive-material-reduced cellulose | Joachim Behnke, Helmut Schulze, Michael Pelger | 1989-03-21 |