Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4572516 | Low friction dynamic seal assembly with centrifugal deflection | James D. Symons, Arnold O. DeHart | 1986-02-25 |
RD
Ronald J. Dershem
Overall (All Time): #3,991,113 of 4,157,543Top 100%
1
Patents All Time