Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834892 | Additives for lubricating oils, their process of preparation and lubricating compositions containing them | Bernard Damin, Pierre Hoornaert, Claude Rey | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834892 | Additives for lubricating oils, their process of preparation and lubricating compositions containing them | Bernard Damin, Pierre Hoornaert, Claude Rey | 1989-05-30 |