Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5961854 | Electrode for resistance spot welding of aluminum sheet | Dietmar Mueller, Nikolaus Gschossmann, Franz H. Schubert | 1999-10-05 |
| 4209782 | Method and circuit arrangement for the electronically controlled release of door, safe and function locks using electronically coded keys | Bernhard Donath | 1980-06-24 |