Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743410 | Method for manufacturing a flat illumination unit | Hartmut Grethen, Werner Nickel | 1988-05-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4743410 | Method for manufacturing a flat illumination unit | Hartmut Grethen, Werner Nickel | 1988-05-10 |