Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845361 | Process for electron beam guiding with energy selection and electron spectrometer | Heinz-Dieter Bruchmann, Sieghart Lehwald | 1989-07-04 |
| 4818500 | Method of and apparatus for growing crystals | Karl Boden, Udo Linke | 1989-04-04 |