7 MACHINES AND ELECTRIC MOTORS FOR THE TRANSFER OF POWER FOR BORING AND DRILLING FOR THE CRUDE OIL AND NATURAL GAS INDUSTRIES; OIL DRILLING PLANTS; METAL OIL DRILLING TOWERS; OIL DRILLING PLANTS COMPRISED OF METAL CROWN BLOCKS, METAL HOIST BLOCKS, METAL DRILL HOOKS, CLEANING HEADS FOR REMOVAL OF DRILLING DEBRIS AND FOR COOLING OF DRILL BITS WITH RINSE LIQUID, ELEVATORS, COUNTER AND BRAKING ASSEMBLIES, DRAW WORKS, EQUIPMENT CONTROL PANELS AND CONSOLES, MACHINE CONTROL WORK PLATFORMS, METAL FLUSHING HOSES FOR TRANSPORT OF OIL, WATER AND MUD IN DRILLING RIGS, METAL EQUIPMENT RAMPS, CABLE WINCHES, METAL CHAIN AND LINEAR ELECTRIC MOTORS, REVOLVING WORK PLATFORMS, TOOL BITS FOR MACHINES, NAMELY CORE BITS AND DRILL BITS, BEARINGS, DRILLING MACHINES AND ELECTRIC, HYDRAULIC AND MECHANICAL TURBINES, AND PIPE HANDLING MACHINES