Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5854459 | Method and device for processing workpieces by means of electrical discharge machining | Ernst Buhler, Peter Wehrli | 1998-12-29 |
| 4877324 | Optical sighting device with illuminated aiming mark | Bernhard Hauri | 1989-10-31 |