Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826574 | Distillation column with helical liquid flow and dissymmetric spacing of the trays | Jean-Paul Gourlia | 1989-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826574 | Distillation column with helical liquid flow and dissymmetric spacing of the trays | Jean-Paul Gourlia | 1989-05-02 |