Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886377 | Rotary body of hard material with plastic supporter | Takashi Kizawa | 1989-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886377 | Rotary body of hard material with plastic supporter | Takashi Kizawa | 1989-12-12 |