Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881210 | Torsionally rigid support apparatus for marine seismic transducer | Wilbur J. Myers | 1989-11-14 |
| 4874061 | Downhole orbital seismic source | — | 1989-10-17 |
| 4871045 | Telescoping tube omni-directional shear wave vibrator | — | 1989-10-03 |
| 4867096 | Tubular shear wave source | — | 1989-09-19 |
| 4862990 | Downhole seismic sources | — | 1989-09-05 |
| 4853906 | Apparatus for generating elliptically polarized shear waves | — | 1989-08-01 |