E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/63
E21B 33/12 (2006.01) F16L 55/11 (2006.01)
Patent
CA 1113382
A B S T R A C T A reusable plug for sealing the conductor pipe of offshore platforms comprising a cylin- drical housing, central body member, pressure equalization means and retractable release means releasably securing the central body member to the cylindrical housing.
334826
Company Halliburton
Swabey Ogilvy Renault
LandOfFree
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