Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674449 | Iron base alloys for internal combustion engine valve seat inserts, and the like | Xuecheng Liang | 1997-10-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674449 | Iron base alloys for internal combustion engine valve seat inserts, and the like | Xuecheng Liang | 1997-10-07 |