Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4707597 | Method and apparatus for acoustic supervision of adjustment operations at optical devices | Joerg Schulz-Hennig | 1987-11-17 |
| 4694150 | Method and apparatus for acoustic supervision of adjustment operations at optical devices | Joerg Schulz-Hennig | 1987-09-15 |
| 4694152 | Method and apparatus for acoustic supervision of adjustment operations at optical devices | Joerg Schulz-Hennig | 1987-09-15 |