Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4386891 | Rotary hydraulic vane pump with undervane passages for priming | John G. Henne, David Dean | 1983-06-07 |
RR
Richard P. Riefel
Overall (All Time): #4,052,622 of 4,157,543Top 100%
1
Patents All Time