U.S. federal trademark · Serial No. 97470616 · Reg. No. 7325078
Oil and gas well equipment, namely, bridge plugs and fracturing plugs composed of cast iron for controlling pressure or fluids downhole; cement retainers, namely, an isolation tool composed of cast iron set in the casing or liner that enables treatments to be applied to a lower interval while providing isolation from the annulus above, for use in oil and gas wells
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