74324617
Oct 22, 1992
Feb 22, 1994
machines, for applications in the metal working; general industrial; aerospace; automotive; electronic; weapons; and armaments machinery industries, for use in lapping and polishing the following; gears, piston rings, ball bearings, silicon wafers, computer discs, magnetic heads, seals and valves, optics, quartz crystals (electronics), knives and slitter blades, automotive parts and other components requiring a high degree of machined surface finish; mixing machines for use in mixing abrasives, liquids, and oils
Machinery[ apparatus for regulating the flow of abrasive slurries, apparatus for controlling or metering abrasive suspensions and metering pumps ]
Electrical and Scientific Apparatus