Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339914 | Method and apparatus for cleaning an open-end spinning rotor | — | 1982-07-20 |
| 4315399 | Procedure for cleaning a rotor of a spinning unit of the open-end type | Erwin Zurcher | 1982-02-16 |