Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4229147 | Rotary positive-displacement pump | Ernst Linder, Helmut Rembold, Walter Teegen, Achill Kessler | 1980-10-21 |
RE
Roland Ehmann
Overall (All Time): #4,122,195 of 4,157,543Top 100%
1
Patents All Time