Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338071 | Pipe coupling | Ralf Hohmann, Olaf Kohlhaus, Stephan Mann, Ralf Spors | 1994-08-16 |
| 5309607 | Hose clip | Ralf Hohmann, Manfred Kruger, Stephan Mann, Erich Ruf, Ralf Spors +5 more | 1994-05-10 |