Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9543774 | Supply circuit in a communication system of a protective headgear, protective headgear with such a supply circuit and method for operating such a supply circuit | Achim Volmer, Henning Ritter | 2017-01-10 |