Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4988008 | Supporting framework for a control cabinet | Richard S. Blum, Hans-Michael Groh, Ludwig Schmidt | 1991-01-29 |
| 4660595 | Pressure-limiting valve | Karl Krieger, Werner Reinelt | 1987-04-28 |