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Inventor
HAMBLIN GERALD M
US
3 patents
Patents
3 patents
US5236231A
Aug 17, 1993
Brittle lined pipe connector
UNION OIL CO
22 citations
89
US5069485A
Dec 3, 1991
Brittle lined pipe connector
UNION OIL CO
41 citations
89
US5240293A
Aug 31, 1993
Brittle lined pipe connector
UNION OIL CO
5 citations
60