Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019110 | Needle ring with needles for the combing cylinder of an open-end spinning machine | Pierre-Jean Muller | 1991-05-28 |
| 4798046 | Opening cylinder for open-end spinning machines | Hans Riethmann | 1989-01-17 |
| 4196496 | Combing roller | Christoph B. Burckhardt | 1980-04-08 |