Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375517 | Method and apparatus for screen printing | Norbert von der Lippe, Peter Sommer | 1994-12-27 |
| 5316786 | Method for the treatment of steel-hybrid printed circuit boards | Norbert von der Lippe, Peter Sommer | 1994-05-31 |