RL

Robert O. Lilley

VG Vetco Gray: 1 patents #7 of 24Top 30%
Overall (1989): #62,375 of 140,708Top 45%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4848457 Annulus sliding sleeve valve — 1989-07-18