Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843246 | Apparatus for detecting the position of incidence of a beam of charge carriers on a target | Ewald Benes, Franz Viehbock, Friedrich-Werner Thomas, Gernot Thorn | 1989-06-27 |