Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9815485 | Method and device for outputting an acoustic warning signal of a rail vehicle and warning system for a rail vehicle | Holger Niemann, Henning Voelz, Florian Feile | 2017-11-14 |