Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4498495 | Magnetic differential pressure valve with an indicator showing when valve has opened or closed | Paul Stallard | 1985-02-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4498495 | Magnetic differential pressure valve with an indicator showing when valve has opened or closed | Paul Stallard | 1985-02-12 |