Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862281 | Manual sweeping apparatus | Takashi Sato, Norio Ishibashi | 1989-08-29 |
KY
Kazuki Yamauchi
Overall (1989): #89,353 of 140,708Top 65%
1
Patents 1989