Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852665 | Method for monitoring the operations of the rotary drilling of a well | Bertrand Peltier | 1989-08-01 |
RD
Richard Deshais
Overall (1989): #66,269 of 140,708Top 50%
1
Patents 1989