Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4791017 | Hard, gold-colored under layer for a gold or gold-containing surface layer and an article therewith | Dieter Hofmann, Klaus-Jurgen Heimbach, Wolf-Dieter Munz | 1988-12-13 |