Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6994311 | Regulating vacuum valve | Bernhard Duelli, Leo Marugg | 2006-02-07 |
| 6609697 | Vacuum control valve | — | 2003-08-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6994311 | Regulating vacuum valve | Bernhard Duelli, Leo Marugg | 2006-02-07 |
| 6609697 | Vacuum control valve | — | 2003-08-26 |