Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683751 | Process for surface treatment of sheet steel partially coated with zinc or zinc alloy | Jean Steinmetz | 1997-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683751 | Process for surface treatment of sheet steel partially coated with zinc or zinc alloy | Jean Steinmetz | 1997-11-04 |