73687319
Oct 1, 1987
Feb 7, 1989
Active Trademark
CHEMICALS USED IN INDUSTRY AND SCIENCE -NAMELY, ALUMINUM NITRIDE AND COMPOSITES MAINLY MADE FROM ALUMINUM NITRIDE, ALL OF WHICH ARE IN THE FORM OF POWDERS OR GRANULES FOR USE IN MANUFACTURING; AND SINTERED ALUMINUM NITRIDE IN THE FORM OF SHEETS, BLOCKS OR RODS FOR USE IN MANUFACTURING
Chemicals