Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859238 | Silver-iron material for electrical contacts | Roger Wolmer, Peter Braumann | 1989-08-22 |
| 4797328 | Soft-solder alloy for bonding ceramic articles | Wolfgang Boehm, Juergen Hausselt, Willi Malikowsik | 1989-01-10 |