Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6655224 | Downward offset barbell type walking beam compositively balance oil pump | Xiangyun Ji, Shengeun Yu, Weidong Zhao, Yuzhen WEI, Wuanjiany Zhang | 2003-12-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6655224 | Downward offset barbell type walking beam compositively balance oil pump | Xiangyun Ji, Shengeun Yu, Weidong Zhao, Yuzhen WEI, Wuanjiany Zhang | 2003-12-02 |