Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4496958 | Drawing pen exchanger for computer controlled drawing machines | Joachim Brandt, Gerhard Deblitz, Bernd Willimczik, Rolf Marten, Rolf Paschen +1 more | 1985-01-29 |
| 4489333 | Device for exchanging objects in particular writing instruments | Gerold Anderka, Joachim Brandt, Gerhard Deblitz, Rolf Martens, Rolf Paschen +1 more | 1984-12-18 |