72028083
Apr 12, 1957
Aug 5, 1958
TOOL STEEL IN THE FORM OF DRILL ROD, GROUND ROD OR WIRE, GROUND AND POLISHED ROD OR WIRE, COLD DRAWN OR HOT DRAWN STANDARD DRILL ROD SHAPES SUCH AS SQUARES, FLATS, HEXAGONS, AND OCTAGONS, AND COLD OR HOT DRAWN SPECIAL SHAPES OF VARIOUS CROSS SECTIONAL CONFIGURATIONS FOR USE IN DRILLS, TAPS, REAMERS, PUNCHES, AWLS, BITS, END MILLS, SPINDLES, BEARINGS, SPECIAL TOOLS, DIES, CORES, AND THE LIKE
Jewelry