Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878755 | Process and device for measuring the optical properties of thin layers | Hans-Joachim Siegmund | 1989-11-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878755 | Process and device for measuring the optical properties of thin layers | Hans-Joachim Siegmund | 1989-11-07 |