Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849031 | Process of producing phosphate coatings on metal surfaces | Dieter Hauffe, Peter Mischke, Werner Rausch | 1989-07-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849031 | Process of producing phosphate coatings on metal surfaces | Dieter Hauffe, Peter Mischke, Werner Rausch | 1989-07-18 |