Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4679586 | Pilot operated relief valve | Josef Zürcher, Hubert Haussler | 1987-07-14 |
| 4625756 | Pilot operated relief valve | Josef Zürcher, Hubert Haussler | 1986-12-02 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4679586 | Pilot operated relief valve | Josef Zürcher, Hubert Haussler | 1987-07-14 |
| 4625756 | Pilot operated relief valve | Josef Zürcher, Hubert Haussler | 1986-12-02 |