SUPERSTAGE

Remotely operated down-hole hydraulic tools, namely, hydraulically actuated sleeves being parts of oil and gas reservoir stimulation machines; down-hole tools, namely, hydraulically actuated sleeves being actuated by an obturator for use in extracting oil and gas from reservoirs; powered oil and gas production tools, namely, sleeves being part of a production tubing, casing, or liner; hydraulic stimulation sleeves and hydraulic stimulation ports being parts of a production tubing, casing or liner in the nature of powered tools for oil and gas production