Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5003349 | Film card camera and method for preparing and printing original and duplicate film cards with silver film | Ulrich Welp | 1991-03-26 |
| 4634269 | Film card camera and process for manufacturing duplicate film cards | Ullrich Welp, Michael Girke, Bernd Lack | 1987-01-06 |
| 4439100 | Device for separating and taking off of sheets from a stack | Karl-Heinz Fichtner, Willi Muskulus | 1984-03-27 |