75580955
Nov 2, 1998
May 16, 2000
unprocessed artificial and synthetic resins having optical dyes incorporated therein for use in the manufacture of optical filters
ChemicalsOptical dyes for incorporation into artificial and synthetic resins and plastic articles for use in the manufacture of optical filters
PaintsPlastics in the form of sheets, blocks, rods, and tubes having optical dyes incorporated therein for use as optical filters
Rubber Goods