Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4475239 | Apparatus for text editing and processing | — | 1984-10-02 |
| 4374223 | Elastic cover of an elastomeric material | Johann Wartusch | 1983-02-15 |
| 4300145 | Closing device for an ink printing head | — | 1981-11-10 |
| 4223322 | Maintaining the nozzle surface of an ink writing head | — | 1980-09-16 |