Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11028691 | Drive system with both fixed-displacement hydraulic motors and variable-displacement hydraulic motors for cutter head of boring machine and control method thereof | Xu Yang, Lintao Wang, Chao Wang, Yakun Zhang, Weiqiang Wu +2 more | 2021-06-08 |