Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10052446 | Speech valve with a cover element, comprising a piston-shaped closure element | — | 2018-08-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10052446 | Speech valve with a cover element, comprising a piston-shaped closure element | — | 2018-08-21 |