Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825904 | Two position flow control valve assembly with position sensing | Richard Grau, Guy S. Newell | 1989-05-02 |
| 4816707 | Limited angle torque motor with wide rotation poles | — | 1989-03-28 |