Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4655242 | Water seal drum | Takeru Hamazaki, Noboru Hashimoto | 1987-04-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4655242 | Water seal drum | Takeru Hamazaki, Noboru Hashimoto | 1987-04-07 |