Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848408 | Multi-layer compensator with spacers arranged between the layers | Siegbert Lehmann | 1989-07-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848408 | Multi-layer compensator with spacers arranged between the layers | Siegbert Lehmann | 1989-07-18 |