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 comprised of perforating guns and related equipment accessories in the nature of firing heads used to detonate perforating charges, detonators and igniters being initiation devices used to initiate detonation, shaped charges being explosives, setting tools for placement of downhole equipment, boosters and booster kits being metal tubes for the transfer of ballistic energy, and also...