Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823759 | Pressure deriving port of internal combustion engine | — | 1989-04-25 |
TM
Tateki Mitani
Overall (1989): #52,952 of 140,708Top 40%
1
Patents 1989