Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6619435 | Device for preventing uncontrolled acceleration of an elevator car installed in an elevator installation | Hartmut Liebig | 2003-09-16 |
| 4665337 | Gas discharge arrester and method of manufacture | Gerhard Lange, Juergen Boy | 1987-05-12 |
| 4390762 | Contact piece for an electric vacuum switch | — | 1983-06-28 |