Inventor

STAFFORD CHARLES W

US2 patents

⚠️ This page may combine multiple inventors who share the name “STAFFORD CHARLES W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CAMCO INT

1 patent

US5671817ASep 30, 1997

Drill bit with dual reaming rows

CAMCO INT23 citations88

VAREL MFG CO

1 patent

US4552228ANov 12, 1985

Low pressure differential compensator

VAREL MFG CO13 citations66