RK

Richard P. Krape

RV Ross Operating Valve: 1 patents #21 of 51Top 45%
Overall (All Time): #3,904,218 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4930401 Valve system and arrangement for on-line valve replacement Russell J. Cameron, Robert N. Winsand 1990-06-05