Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351244 | Seismic transmission method and device for a very low error rate | Joseph Rialan | 1994-09-27 |
| 5276655 | Method and device for simplifying the localization of a subsurface zone within the scope of a seismic exploration | Joseph Rialan, Gerard Thierry | 1994-01-04 |