Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592907 | Valve operating system for multi-cylinder internal combustion engine | Tetsuya Hasebe | 1997-01-14 |
KK
Kazuhide Kumagai
Overall (1997): #122,775 of 185,788Top 70%
1
Patents 1997