Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592145 | Electromagnetic signal horn | Ullrich Kellner, Franz-Josef Schlueter, Harald Dietz | 1997-01-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592145 | Electromagnetic signal horn | Ullrich Kellner, Franz-Josef Schlueter, Harald Dietz | 1997-01-07 |