Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4558985 | Pump with screw conveyors on each end | Alfred Fischer, Roland Gerlach, Gerhard Siefert | 1985-12-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4558985 | Pump with screw conveyors on each end | Alfred Fischer, Roland Gerlach, Gerhard Siefert | 1985-12-17 |