Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330301 | Dispersant for aqueous slurry of coal powder | Masaaki Yamamura, Noboru Moriyama | 1982-05-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330301 | Dispersant for aqueous slurry of coal powder | Masaaki Yamamura, Noboru Moriyama | 1982-05-18 |