Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825904 | Two position flow control valve assembly with position sensing | Robert D. Vanderlaan, Guy S. Newell | 1989-05-02 |
| 4809742 | Control valve assembly including valve position sensor | — | 1989-03-07 |