Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4705592 | Process for producing printed circuits | Friedrich W. Schwerdt, Jurgen H. Stehling | 1987-11-10 |
| 4521280 | Method of making printed circuits with one conductor plane | Friedrich W. Schwerdt | 1985-06-04 |