Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5701104 | Radio-frequency oscillator of planar design | — | 1997-12-23 |
| 5675275 | Arrangement for the generation of a high-frequency needle pulse train and of an inverted needle pulse train | Rudolf Schwarte | 1997-10-07 |