Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835473 | Method using a d.c. source for determining resistivity distribution of the earth as a function of depth | — | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835473 | Method using a d.c. source for determining resistivity distribution of the earth as a function of depth | — | 1989-05-30 |