Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856614 | Process and device for seismic prospecting of a medium with induced waves created artificially in a bore-hole | Georges Arens, Pierre Gros | 1989-08-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4856614 | Process and device for seismic prospecting of a medium with induced waves created artificially in a bore-hole | Georges Arens, Pierre Gros | 1989-08-15 |