Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4941511 | Device with a valve function | Trond V. Johansen, Ola Ruch, Ludvig Naess, K. P. Kristjansson | 1990-07-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4941511 | Device with a valve function | Trond V. Johansen, Ola Ruch, Ludvig Naess, K. P. Kristjansson | 1990-07-17 |