TEWATT

Air compressors [ ; Air filters for mechanical purposes; Compressors as parts of machines, motors and engines; Compressors for machines; Drill bits for rock drilling; Drilling machines; Drilling rigs; Drills for the mining industry; Electric compressors; Excavating machines; Fuel filters; Mine borers; Oil field equipment, namely, drilling rig mechanical handling machines and devices; Oil filters; Oil separators; Pneumatic controls for machines, motors and engines; Pneumatic hammers; Power drill bits; Rock drills ]