Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690161 | Process for treating molten metal during a casting operation using a filter and filter for implementing the process | Jean-Charles Daussan, Gerard Daussan | 1997-11-25 |
| 5603373 | Process for treating molten metal during a casting operation using a filter and filter for implementing the process | Jean-Charles Daussan, Gerard Daussan | 1997-02-18 |