Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9718208 | Chain tension adjusting apparatus for chain saw | Masashi Sugiyama | 2017-08-01 |
| 9676115 | Guide bar fastening device for chain saw | Masashi Sugiyama | 2017-06-13 |
| 9573208 | Portable working machine | Masashi Sugiyama | 2017-02-21 |