Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9708160 | Tensioning device and tensioning method for steel wire rope of cage guide of ultra-deep vertical shaft | Zhencai Zhu, Xiao Liang Chen, Guohua Cao, Wenxiang Teng, Gang Shen +2 more | 2017-07-18 |
| 9590812 | Method and device for charging local traffic on wireless side | Kaifu QIU, Zhixiong Zhou, Zhuo Cui, Jun Huang, Guiliang Li | 2017-03-07 |