Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11383291 | Hollow drive shaft using upsetting method and manufacturing method therefor | Sung-ha Kim, Eui Hyouk HWANG | 2022-07-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11383291 | Hollow drive shaft using upsetting method and manufacturing method therefor | Sung-ha Kim, Eui Hyouk HWANG | 2022-07-12 |