Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854417 | Exhaust muffler for an internal combustion engine | Hideo Takahashi, Tetsuro Ikeno | 1989-08-08 |
NU
Naomoto Uesugi
Overall (1989): #73,841 of 140,708Top 55%
1
Patents 1989