Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885218 | Battery exhaust gas plug filter and process for manufacturing the same | Masayasu Andou | 1989-12-05 |
IT
Ichiro Tajima
Overall (1989): #102,572 of 140,708Top 75%
1
Patents 1989