Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6676123 | Device for improving the alignment accuracy of sheet-like material | — | 2004-01-13 |
| 6663103 | Process and device for alignment of sheet material during transport | Dieter Dobberstein, Joachim Haupt, Karlheinz Peter, Gerhard Sing, Rolf Spilz +3 more | 2003-12-16 |
| 4196999 | Developing apparatus for duplicating of film patterns on diazo-material by means of ammonia gas | Ulrich Welp | 1980-04-08 |