78721698
Sep 27, 2005
Parts for oil well drilling operation machines, namely machine-driven holding tools, machine-driven clamps, machine tool holders with firmly fixed inserts, and pipe clamps to be used in relation to drilling tubulars, drilling strings, casings, and pipe joints; mechanically operated tools for gripping of drilling tubulars and casings; and mechanically operated clamping tools for assembly and disassembly of threaded tubulars
Machinery