72406783
Nov 3, 1971
Mar 26, 1974
ULTRAVIOLET FILTERS-NAMELY, DICHROIC FILTERS, HIGH REFLECTORS, NARROW BANDPASS FILTERS, VISIBLE FILTERS-NAMELY, COLOR SEPARATION FILTERS, NEUTRAL DENSITY FILTERS, MULTILAYER ANTIREFLECTION COATINGS, FRONT SURFACE MIRRORS, TRANSPARENT MIRRORS, HIGH REFLECTORS, HEAT/LIGHT SEPARATION FILTERS, BANDPASS FILTERS, AND BEAM SPLITTERS; INFRARED FILTERS-NAMELY, SQUARE BAND FILTERS, LONG AND SHORT WAVE PASS FILTERS, WIDE BANDPASS FILTERS, ANTIREFLECTION COATINGS, MULTICOLOR RETICLES, CIRCULAR VARIABLE FILTERS AND DUAL BAND FILTERS; COATINGS FOR FILTERS; LASER OPTICS; COATINGS FOR LASER OPTICS, THERMAL CONTROL COATINGS, TRANSPARENT CONDUCTIVE COATINGS, OPTICAL ELEMENTS, GAS CHROMATOGRAPH IDENTIFIERS, ATOMIC ABSORPTION SPECTROPHOTOMETER, AND PARTS THEREFOR
Fancy Goods