Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829762 | Method and device for improving a yarn produced in the rotor of an open-end spinning apparatus | — | 1989-05-16 |
| 4825637 | Fiber opening device in a spinning unit of an open-end spinning machine | — | 1989-05-02 |
| 4815269 | Silver opening and feeding device for an open-end spinning device | — | 1989-03-28 |