Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810349 | Oxygen concentration sensor with an improved electrical connection for the transmission of different operating voltages | — | 1989-03-07 |
HH
Hiroaki Hishida
Overall (1989): #105,479 of 140,708Top 75%
1
Patents 1989