Filed Sept. 10, 2002

Serial No. 78162564

Registered July 15, 2003

Registration No. 2,736,824

Class Drilling tools-- namely, shock tools, fishing bumper subs, jar accelerators, combination drilling jars, fishing jars, hydraulic mechanical jars, rib stabilizers, reamers, kelly valves, cubing safety valves, kelly cocks, inside blow-out preventers and stabbing valves, break-out machines, blow-out preventers, stabilizers, rig levelling jacks, sheave units, drill collar handling systems and single joint elevators; 013; 019; 021; 023; 031; 034; 035