Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6520750 | Pumping apparatus with extendable drawing pipe and impeller and impeller hydraulic drive means supplied by a hydraulic hose carried by a segmented hydraulic hose support | James David Eller, Dana Eller | 2003-02-18 |