Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10837519 | Bush chain and roller chain | Takeo Kobayashi | 2020-11-17 |
AF
Akira Fujiwara
Overall (2020): #559,664 of 565,922Top 100%
1
Patents 2020