85349590
Jun 17, 2011
Jan 15, 2013
Power-operated downhole and surface tools and equipment used in the drilling, completion, and workover of oil and gas wells, namely, pressure isolation packers, anchoring tools for the permanent or temporary installation of tubulars and casings, and deployment tools for the deployment and subsequent permanent or temporary installation of tubulars, casings, and pressure isolation packers in wellbores
Machinery