Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722630 | Shut-off device with a swivellable butterfly valve and an entropy-elastic annular seal held on a backup ring | — | 2004-04-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722630 | Shut-off device with a swivellable butterfly valve and an entropy-elastic annular seal held on a backup ring | — | 2004-04-20 |