74042054
Mar 26, 1990
Jan 8, 1991
SYNTHETIC RESINS IN THE FORM OF POWDERS, FLAKES, THIN FILMS, THIN SHEETS OR SOLUTIONS FOR USE IN THE MICRO-ELECTRONIC AND ELECTRONIC INDUSTRIES, [ FOR MEMBRANE SEPARATION CONDUCTED BY A VARIETY OF INDUSTRIES, ] AND FOR USE IN OTHER HIGH PERFORMANCE INDUSTRIES SUCH AS THE AEROSPACE AND MILITARY SUPPLY INDUSTRIES
Chemicals