Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9016983 | Method for preventing shield casing jamming due to too large frictional resistance in earth pressure balance shield machine | Jianbin Li, Yulian He | 2015-04-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9016983 | Method for preventing shield casing jamming due to too large frictional resistance in earth pressure balance shield machine | Jianbin Li, Yulian He | 2015-04-28 |