Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5475188 | Device for securing two or more seismic energy sources at fixed relative positions | Hans Cappelen, Tor Elholm, Odd O. Vatne | 1995-12-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5475188 | Device for securing two or more seismic energy sources at fixed relative positions | Hans Cappelen, Tor Elholm, Odd O. Vatne | 1995-12-12 |