Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346851 | Device for automatically shredding thin sheets | Gerd von Aschwege | 1982-08-31 |
| 4339221 | Portable input magazine | Wilhelm Mitzel, Rudolf Duschek | 1982-07-13 |
| 4324394 | Device for separating record carrying items | Wilhelm Mitzel | 1982-04-13 |