Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819332 | Oil supply structure of chain saw | Hideo Sugihara, Daijo Hirose | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819332 | Oil supply structure of chain saw | Hideo Sugihara, Daijo Hirose | 1989-04-11 |