Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800385 | Well data transmission system using a magnetic drill string for transmitting data as a magnetic flux signal | — | 1989-01-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800385 | Well data transmission system using a magnetic drill string for transmitting data as a magnetic flux signal | — | 1989-01-24 |