Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5577684 | Winding machine with support cylinders | Hartmut Dropczynski | 1996-11-26 |
| 5413656 | Method and device for exchanign windings rolls | Wolfgang Fischer, Hartmut Dropczynski | 1995-05-09 |