Electronic apparatus, instruments and installations consisting thereof, namely, electronic controllers and control systems for ignition and/or explosion processes for use in oil exploration; electric and electronic ignition systems; fuse wire for use in ignition and/or explosion processes in oil exploration; measuring devices for detonators and ignition systems, namely, a surface tester for testing a fully assembled perforating gun assembly; transducers for recording shock waves; remote contr...

Equipment and machines for oil extraction from oil fields, namely, hollow carrier and through-tubing gun systems comprising perforating guns, spacer hardware, perforating power tools and accessories used therewith sold as a unit