Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4384706 | Method of plugging up a taphole in a blast furnace | Yoshimi Shirasaka, Toshinori Minakawa | 1983-05-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4384706 | Method of plugging up a taphole in a blast furnace | Yoshimi Shirasaka, Toshinori Minakawa | 1983-05-24 |