Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882812 | Opening roller for an opening device of an open-end spinning machine | Gerhard Fetzer | 1989-11-28 |
| 4805395 | Opening roller for an opening device of an open-end spinning machine | Fritz Stahlecker, Hans Stahlecker, Gerhard Fetzer | 1989-02-21 |