Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687713 | Breathing mask | .O slashed.ystein Ljungmann, Nils Kvandal, Vigbj.o slashed.rn Matre | 1997-11-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687713 | Breathing mask | .O slashed.ystein Ljungmann, Nils Kvandal, Vigbj.o slashed.rn Matre | 1997-11-18 |