Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867853 | Process of producing phosphate coatings | Dieter Hauffe, Gerhard Muller, Werner Rausch, Helmut Schumichen | 1989-09-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867853 | Process of producing phosphate coatings | Dieter Hauffe, Gerhard Muller, Werner Rausch, Helmut Schumichen | 1989-09-19 |