U.S. federal trademark · Serial No. 72137952 · Reg. No. 773094
PREPARED AND UNPREPARED POWDERS, FIBERS, AND GRANULAR PARTICLES OF ORGANIC AND INORGANIC ORIGIN AS WELL AS MIXTURES OF ALL SUCH PARTICLES WITH EACH OTHER AND WITH COAL, EARTH, SAND, KIESELGUHR, FELT, VEGETABLE FIBERS, ARTIFICCIAL FIBERS, LINEN, PAPER, COTTON FOR FILTERING LIQUID, ALSO FILTERING LAYERS PRODUCED FROM THE ABOVE FILTERING MATERIALS AND THEIR DERIVATIVES
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