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Inventor
JEFFERIES ROBERT K
US
2 patents
⚠️ This page may combine multiple inventors who share the name “JEFFERIES ROBERT K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OFFSHORE CO
1 patent
US3957291A
May 18, 1976
Ball joint assembly with internal passages
OFFSHORE CO
31 citations
75
NL INDUSTRIES INC
1 patent
US4215643A
Aug 5, 1980
Quick release bollard
NL INDUSTRIES INC
10 citations
68