Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4343883 | Method for producing an electrophotographic recording material having dual layer of amorphous and crystallized Se | Karl-Heinz Kassel, Manfred Lutz, Josef Stuke | 1982-08-10 |