Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334029 | Unfired refractory composition | Hiroyuki Naito, Takashi Maruya, Hideyo Ohmori | 1982-06-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334029 | Unfired refractory composition | Hiroyuki Naito, Takashi Maruya, Hideyo Ohmori | 1982-06-08 |