Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11821048 | Hole-opening bit and tap hole opening method using same | Yohei Kitamura, Tomohiko Kawakami | 2023-11-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11821048 | Hole-opening bit and tap hole opening method using same | Yohei Kitamura, Tomohiko Kawakami | 2023-11-21 |