Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815920 | Lock nut with synthetic resin threading | — | 1989-03-28 |
TM
Takuya Morooka
Overall (1989): #52,859 of 140,708Top 40%
1
Patents 1989