Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803861 | Guide structure for pierced hollows | Rolf Kuemmerling, Klaus-Peter Schirmag, Wilhelm Nickel | 1989-02-14 |
| 4799842 | Weld stud | Hans Kreider | 1989-01-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803861 | Guide structure for pierced hollows | Rolf Kuemmerling, Klaus-Peter Schirmag, Wilhelm Nickel | 1989-02-14 |
| 4799842 | Weld stud | Hans Kreider | 1989-01-24 |