Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5035058 | Chain saw guide bar | Toshihiro Tsumura | 1991-07-30 |
| 5014435 | Chain saw guide bar | Toshihiro Tsumura | 1991-05-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5035058 | Chain saw guide bar | Toshihiro Tsumura | 1991-07-30 |
| 5014435 | Chain saw guide bar | Toshihiro Tsumura | 1991-05-14 |