Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829956 | Method and apparatus for detecting discrete levels of detonation in an internal combustion engine | Bryce H. Rehn, Ronald J. Penick, Harold A. Baker | 1989-05-16 |
DE
Daniel W. Esters
Overall (1989): #32,118 of 140,708Top 25%
1
Patents 1989