RZ

Richard P. Zbell

RV Ross Operating Valve: 1 patents #21 of 51Top 45%
📍 Washington, PA: #320 of 552 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,103,353 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4181148 Self monitoring double valve Neil E. Russell, Russell J. Cameron, Lloyd L. Schmaltz 1980-01-01