SLIMDRIL
APPARATUS AND DEVICES FOR THE PRODUCTION OF NATURAL GAS AND CRUDE OIL, NAMELY, MECHANIZED DRILLING AND PRODUCTION RIGS, PRODUCTION CASINGS AND PRODUCTION TREES; POWER-OPERATED MACHINE AND MACHINE TOOL PARTS FOR EARTH DRILLING AND DEEP DRILLING, NAMELY, DRILL BITS, DRILLS, UNDER REAMERS, DEFLECTORS, DOWN HOLE ROTARY DRILLING MOTORS, PACKERS, ARTICULATED DRILL STRINGS, NON-MAGNETIC DRILL COLLARS AND PARTS THEREFOR
Abandoned · September 22, 1998 · 75557898 ·