Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4204731 | Apparatus for electrophotographic copying with means for effecting image penetration through the copy carriers | Robert Kohler, Dieter Giglberger, Freidrich Bestenreiner | 1980-05-27 |