7 Machines for drilling, completing, producing, and working oil and gas wells and parts therefor, namely, casing centralizers, tubing centralizers, welded positive centralizers, rigid positive centralizers, welded-bow centralizers, close tolerance centralizers, non-welded centralizers and spiral tubing centralizers, centralizers for multiple tubing completions and centralizers for logging tools, casing scrapers, wall scrapers, wall wipers, cable wipers, wall scratchers, wire scratchers, stop rings, metal collars, metal stop collars, casings, couplings, expansion joints, casing collars, tubing collars, bows and bottom hole scrapers, production packers, permanent seal bore packers, retrievable seal bore packers, tension set retrievable packers, compression set retrievable packers, retrievable dual packers, tension unloaders, connector valves, index valves, fluid control valves, on/off tools, safety joints, swivel joints, packer tubing accessories, tubing anchors, liner hangers, liner packers, liner accessories, sliding sleeves, locks and nipples, blast joints, squeeze packers, inflatable packers, cement sleeves, cement retainers, squeeze manifolds, retrievable bridge plugs, drillable bridge plugs, selective treating assemblies, setting tools, retrieving tools, open hole hydro-mechanical packers, swell packers, ball launchers, open hole and cemented hole ball activated frac sleeves, toe valves, dissolvable frac balls, aluminum and composite plugs, float shoes, float collars, casing wiper plugs, and stage cementing collars
Trademark: 87884399
