74208145
Sep 30, 1991
Aug 16, 1994
Active Trademark
abrasives and polishing agents in the form of powders, pastes, slurries, colloids, and pellets for use with silicon wafers, semiconductor crystals, compound semiconductors, quartz crystals, prisms, lenses, glass, metal, plastics and ceramics
Cosmetics and Cleaning Preparationslapping machines, polishing machines, and grinding machines, and abrasive and polishing pads, wheels and shaped solid blocks used as accessories therefor
Machinery