Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4798183 | Swirl chamber type combustion chamber for diesel engine | Kiyoshi Hataura | 1989-01-17 |
MN
Masahiro Nagahama
Overall (1989): #79,792 of 140,708Top 60%
1
Patents 1989