Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889349 | Sealing arrangement | — | 1989-12-26 |
| 4802330 | Combined carpet yarns by open end rotor spinning | Paul W. Yngve, Peter Artzt, Gerhard Egbers, Ullrich Stark | 1989-02-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889349 | Sealing arrangement | — | 1989-12-26 |
| 4802330 | Combined carpet yarns by open end rotor spinning | Paul W. Yngve, Peter Artzt, Gerhard Egbers, Ullrich Stark | 1989-02-07 |