Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4218424 | Apparatus for the zone pulling of monocrystal rods | Karl Jericho, Dietrich Drechsel, Friedrich Bubeck | 1980-08-19 |
| 4186173 | Apparatus for producing monocrystals | Karl Jericho, Uwe Reimpell, Dieter Drechsel | 1980-01-29 |