Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D301016 | Roughness indicator | — | 1989-05-09 |
| 4323903 | Strip chart recorder with a differential capacitor serving as position sensor in a position servo for the recording pen | Svend-Olof Sjostrom | 1982-04-06 |