Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858718 | Tube-wave attenuation method, system and apparatus for use with an inpulsive seismic energy source in liquid-containing wells | — | 1989-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4858718 | Tube-wave attenuation method, system and apparatus for use with an inpulsive seismic energy source in liquid-containing wells | — | 1989-08-22 |