Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5617895 | Hydraulic control valve | Berthold Pfuhl, Joachim Zumbraegel | 1997-04-08 |
FZ
Friedhelm Zehner
Overall (All Time): #3,713,343 of 4,157,543Top 90%
1
Patents All Time