73020522
May 3, 1974
May 13, 1975
OFF SHORE OIL AND GAS WELL DRILLING AND PRODUCTION TOOLS-NAMELY, MARINE RISERS, [ WELLHEAD ASSEMBLIES, ] SUPPORT SYSTEMS AND DIVERTERS, TELESCOPIC JOINTS, BALL JOINTS, [ BLOWOUT PREVENTERS, AUTOMATIC BACK PRESSURE CONTROL VALVES, ] FAST SHUT-OFF COUPLINGS [ , WIRE LINE AND ROD STRIPPERS, WALL SCRAPPERS AND SPARE PARTS FOR CROWN AND TRAVELLING BLOCKS ]
Machinery