Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879475 | Device and method for maintaining a voltage level in a control circuit | Joachim Ruge, Gregor Kathke | 1989-11-07 |
| 4825632 | Method and device for monitoring the piecers in an open-end spinning assembly | Hans Raasch, Joachim Ruge, Heinz-Dieter Goebbels, Manfred Lassmann, Norbert Schippers | 1989-05-02 |