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Inventor
PETTIT JOHN R
US
2 patents
⚠️ This page may combine multiple inventors who share the name “PETTIT JOHN R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VETCO GRAY INC
1 patent
US4674576A
Jun 23, 1987
Casing hanger running tool
VETCO GRAY INC
64 citations
89
VETCO OFFSHORT INC
1 patent
US4521040A
Jun 4, 1985
Combined metal and elastomer seal
VETCO OFFSHORT INC
27 citations
85