Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4300986 | Coke oven door cleaner | Tsuzuki Akira | 1981-11-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4300986 | Coke oven door cleaner | Tsuzuki Akira | 1981-11-17 |