Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839120 | Ceramic material extruding method and apparatus therefor | Hajime Matsushita, Yasuji Katsuragawa | 1989-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839120 | Ceramic material extruding method and apparatus therefor | Hajime Matsushita, Yasuji Katsuragawa | 1989-06-13 |