Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11583644 | Spring bridge for a spring bridge breathing bag plate system of a closed-circuit respirator, spring bridge breathing bag plate system as well as closed-circuit respirator | Christian Wilhelm, Matthias Düpjan | 2023-02-21 |