Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841139 | Method for testing components of transparent material for surface irregularities and occlusions | Harald Schmalfuss, Bernhard Schneider | 1989-06-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841139 | Method for testing components of transparent material for surface irregularities and occlusions | Harald Schmalfuss, Bernhard Schneider | 1989-06-20 |