Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845936 | Process and device to piece back to a spinning device operating with a pneumatic torsion element | Peter Artzt, Harald Dallmann, Gerhard Egbers | 1989-07-11 |
| 4825633 | Process and device for the spinning of fibers | Peter Artzt, Harald Dallmann, Gerhard Egbers | 1989-05-02 |