Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372207 | Seismic prospecting method and device using a drill bit working in a well | Charles Naville, Philippe Staron, Christian Wittrisch | 1994-12-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372207 | Seismic prospecting method and device using a drill bit working in a well | Charles Naville, Philippe Staron, Christian Wittrisch | 1994-12-13 |