Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5216360 | Vacuum-tight signal lines in a testing apparatus for components | Friedbert Gelzer | 1993-06-01 |
| 5210424 | Cooling means for components in a vacuum chamber | Friedbert Gelzer | 1993-05-11 |