74221415
Nov 14, 1991
Oct 19, 1993
power-operated diamond and cubic boron nitride machine tools; namely, drills, grinding wheels, polishing wheels, rotary dressers, cutting tools, dressing tools used to form and dress surfaces of grinding wheels; a sintered body of diamond and boron nitride tipped measuring points; and a sintered body of diamond and boron cubic nitride tipped revolving saw blades for use with power-operated machine tools
Machinery