Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931705 | Circuit arrangement for textile machines, particularly spinning machines having individually motor-driven spindles | — | 1990-06-05 |
| 4891566 | Method for speed regulation and switch arrangement for performing the method | Wilhelm Sturwald | 1990-01-02 |