Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338367 | Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family | Didier Paul, Laurent PROST | 1994-08-16 |
| 5332446 | Method for continuous pickling of steel materials on a treatment line | Paul Didier | 1994-07-26 |