Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6704657 | Method and apparatus for determining blaster detonation time and first arrival time of seismic wave | Shulin Peng, Weiwei Zhao, Xiaoxi Liu | 2004-03-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6704657 | Method and apparatus for determining blaster detonation time and first arrival time of seismic wave | Shulin Peng, Weiwei Zhao, Xiaoxi Liu | 2004-03-09 |