71539220
Oct 27, 1947
Mar 28, 1950
OIL WELL DRILLING AND OPERATING TOOLS AND EQUIPMENT-NAMELY, FLOW BEANS, CASING HEADS, PACK-OFF ATTACHMENTS, LANDING BASES, BLOW-OUT PREVENTERS, BUSHINGS, INSIDE CASING CUTTERS, CELLAR GATES, COMBINATION HEADS, OUTSIDE DRILL PIPE CUTTERS, DRILLING HOOK-UPS, FISHING TOOLS, ROD GRIPS, HAND WHEELS FOR CELLAR GATES, LINER HANGERS, TUBING HEADS, UNIVER-SAL JOINTS FOR CONTROL GATES, MUD CROSSES, PACKING-OFF ATTACHMENTS FOR SPEARS, PRODUCTION HOOK-UPS, RAMS FOR GATES, RELEASING SOCKETS, RELEASING SPEARS, ROD SPACERS, SPOOLS FOR GATES, DRILL PIPE AND TUBING STRIPPERS, CASING SWABS, TUBING SWABS, ADAPTED FLANGES, LANDING BASE HEADS, SPLIT LANDING BASES, BUMPER SUBS, CHRISTMAS TREE FITTINGS, KELLY COCKS, COMBINATION BLOW-OUT PREVENTERS AND STRIPPERS, DOUBLE CONTROL GATES, GATE DRIVES, CHOKED BORE HEADS, ROTARY JARS, PARTS FOR CELLAR GATES, SLIP SUSPENSION CASING HEADS, STUDDED ADAPTER FLANGES, SUCKER ROD STRIPPERS, WELDING FLANGES, WELL CASING CONTROL HEADS, WELL CASING HEADS, FLUID IMPACT POWER WHEELS
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