Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885922 | Locking drive for a central locking system | — | 1989-12-12 |
| 4877700 | Layered electrophotographic recording material containing selenium, arsenic and bismuth or tellurium | Bernd Reimer | 1989-10-31 |