Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817061 | Seismic surveying technique for the detection of azimuthal variations in the earth's subsurface | Heloise Bloxsom Lynn, Leon Thomsen | 1989-03-28 |
| 4803666 | Multisource multireceiver method and system for geophysical exploration | — | 1989-02-07 |