Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831266 | Detector objective for particle beam apparatus | Hans-Peter Feuerbaum | 1989-05-16 |
| 4812651 | Spectrometer objective for particle beam measuring instruments | Hans-Peter Feuerbaum | 1989-03-14 |
| 4808821 | Spectrometer objective for electron beam mensuration techniques | Hans-Peter Feuerbaum | 1989-02-28 |