72413180
Jan 20, 1972
May 22, 1973
ABRASIVE WIRE MESH PADS, AND POLISHING COMPOUNDS USED FOR GRINDING AND POLISHING OPTHALMIC LENSES
Lubricants and FuelsSYNTHETIC RESIN ADHESIVE FOR BLOCKING OPTHALMIC LENS BLANKS DURING GRINDING AND POLISHING OPERATIONS
Pharmaceuticals