Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803961 | Air suction devices for multicylinder engines | Tetsuo Hiraoka, Kouichi Hatamura, Minoru Akizuki | 1989-02-14 |
SS
Shinji Seike
Overall (1989): #56,910 of 140,708Top 45%
1
Patents 1989