pipe cutting chemicals for use in down hole exploration

power operated oil field machines and equipment and parts and accessories therefor; namely, drills, down hole drilling motors, wet stab connectors, bent subs, motor mounted stabilizers, dump subs, orienting subs, non-magnetic drill collars, crossover subs, stabilizers, hole openers; wire line equipment; namely, conductor wire line winch drums; electrical generators; pipe recovery machines; back off shoots; plug casing setters; wire line units; side door subs; perforating guns; tubing conveyed perforators

video cameras for use in connection with drilling operations and for down hole use; measuring instruments, directional guidance units and measurement-while-drilling instruments; namely, depth monitors, pressure sensors and drill floor readout displays; computers and software for use in connection with drilling operations; measuring instruments and sensors; namely, cased hole logging devices, gamma ray tools, gamma ray-neutron tools, casing collar locators, pipe calipers, chlorine logging devices for use in detecting chlorine levels, cement bond logging devices; flow meters; down hole pressure gauges; computer data output recorders

land vehicles for use in drilling and hole operations; namely, mast trucks; land vehicle parts; namely, wireline operator cabs