Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354820 | Extrusion die and method for producing extrusion die for forming a honeycomb structure | Shinichi Yamamoto | 1982-10-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4354820 | Extrusion die and method for producing extrusion die for forming a honeycomb structure | Shinichi Yamamoto | 1982-10-19 |