RH

Raymond J. Hall

Overall (All Time): #2,329,163 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4811756 Safety valve 1989-03-14
4592430 Fluid-pressure operated tools Ian S. Burton 1986-06-03