Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805574 | Ignition timing control system for an internal combustion engine | Kouichi Hatamura, Yoshinori Okino | 1989-02-21 |
KS
Katsuhiko Sakamoto
Overall (1989): #89,862 of 140,708Top 65%
1
Patents 1989