Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616842 | Device for evaluation of the lubricating charcteristics of a drilling mud | Jean Armengaud, Alain Martignon, Jacques Marti | 1997-04-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5616842 | Device for evaluation of the lubricating charcteristics of a drilling mud | Jean Armengaud, Alain Martignon, Jacques Marti | 1997-04-01 |