78233071
Apr 2, 2003
Mar 8, 2005
Machine tools and power operated downhole tools for cutting metal tubular members in a borehole, namely, whipstocks, casing cutters, pilot mills, tapered mills, section mills, and multiple string cutters for use in wellbore construction and maintenance; cutting and orientation machines comprised of whipstocks, casing cutters, pilot mills, tapered mills, section mills, and multiple string cutters for cutting metal tubular members in a borehole, for use in wellbore construction and maintenance
Machinery