Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877700 | Layered electrophotographic recording material containing selenium, arsenic and bismuth or tellurium | Manfred Lutz | 1989-10-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877700 | Layered electrophotographic recording material containing selenium, arsenic and bismuth or tellurium | Manfred Lutz | 1989-10-31 |