Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862090 | Measuring pad arrangement for a logging sonde | Jacques Tromelin | 1989-08-29 |
DV
Daniel Vannier
Overall (1989): #121,418 of 140,708Top 90%
1
Patents 1989