Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838842 | Pulley in which ceramic particles are exposed on the surface | Hiroshi Takahashi | 1989-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838842 | Pulley in which ceramic particles are exposed on the surface | Hiroshi Takahashi | 1989-06-13 |