Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364260 | Engine with knock sensing apparatus having multiple frequency tuning | Francis H. Chen, Douglas A. Feldmaier | 1982-12-21 |
JH
James A. Hamburg
Overall (1982): #56,302 of 81,411Top 70%
1
Patents 1982