Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885710 | Method and apparatus for low speed estimation | Jill G. Hersberger, Robert L. Harding, Peter J. Spadafora | 1989-12-05 |
| 4799178 | Method and apparatus for detecting rotational speed | Peter J. Spadafora, Jill G. Hersberger, Robert L. Harding | 1989-01-17 |