Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5606419 | Spectroscopic measuring device having filter consisting of interference filter, one or two fixed-mirror etalons and a single movable -mirror etalon | Trygve Foosn.ae butted.s, Jon Tschudi, Jon Hagene | 1997-02-25 |