Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4472613 | Contact element arrangement for an electrical switching device, especially for a contactor | Peter Koller, Purnendu Chaudhuri, Hilmar Klepp | 1984-09-18 |
| 4425958 | Low-pressure casting method and low-pressure casting apparatus | Eugen Isler, Ewald Meier, Max Zimmermann | 1984-01-17 |