Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5158929 | Inking ribbon | Ferdinand Quella, Wolfgang Pekruhn, Hartmut Grethen, Barbara Dorner | 1992-10-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5158929 | Inking ribbon | Ferdinand Quella, Wolfgang Pekruhn, Hartmut Grethen, Barbara Dorner | 1992-10-27 |