Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803046 | Method for making targets | Stephan Schittny, Dieter Kaufmann | 1989-02-07 |
| 4797328 | Soft-solder alloy for bonding ceramic articles | Wolfgang Boehm, Wolfgang Weise, Willi Malikowsik | 1989-01-10 |