Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888943 | Apparatus for loosening and unravelling a yarn | Erwin Zurcher | 1989-12-26 |
| 4875347 | Method of actuation of needle selection latches of a knitting machine, and a device for performing the method | Jacque Vermot-Gaud, Erwin Zuercher | 1989-10-24 |
| 4829759 | Universal method for loosening and unravelling a textile yarn and device for carrying out this method | Erwin Zurcher | 1989-05-16 |
| 4827740 | Device for controlling the knitting positions of the needles in a knitting machine | Erwin Zurcher, Jacques Vermot-Gaud | 1989-05-09 |