Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4710330 | Application of the laser jet method for inscribing office machine keyboard buttons | Dieter Lewandowski, Dieter Spranger | 1987-12-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4710330 | Application of the laser jet method for inscribing office machine keyboard buttons | Dieter Lewandowski, Dieter Spranger | 1987-12-01 |