Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6536404 | Piston having combustion chamber defined in the crown | Zhengbai Liu | 2003-03-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6536404 | Piston having combustion chamber defined in the crown | Zhengbai Liu | 2003-03-25 |