Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4218261 | Retarder for gypsum plaster and a process for retarding the setting of gypsum plaster by the use thereof | Koji Takeuchi, Takashi Zama | 1980-08-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4218261 | Retarder for gypsum plaster and a process for retarding the setting of gypsum plaster by the use thereof | Koji Takeuchi, Takashi Zama | 1980-08-19 |