Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823543 | Apparatus for the spinning of yarn | Wolfgang Igel, Helmut Nickolay, Karl-Heinz Mack | 1989-04-25 |
| 4817381 | Process and apparatus for registering dead spinning or twisting stations | — | 1989-04-04 |