Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398756 | Cylindro-conical pipe joint | Jean Duret, Charles Soulier | 1983-08-16 |
| 4373750 | Joint for pipe intended for petroleum industry | Jean Mantelle | 1983-02-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398756 | Cylindro-conical pipe joint | Jean Duret, Charles Soulier | 1983-08-16 |
| 4373750 | Joint for pipe intended for petroleum industry | Jean Mantelle | 1983-02-15 |