75395381
Nov 25, 1997
Aug 10, 1999
Active Trademark
OPTICAL ELEMENTS HAVING A COATING THEREON, NAMELY, OPTICAL LENSES, OPTICAL FILTERS, OPTICAL MIRRORS, PARTIAL REFLECTORS, OPTICAL BEAMSPLITTERS, PHASE RETARDERS, OPTICAL WINDOWS, LASER MIRRORS AND OUTPUT COUPLERS
Electrical and Scientific Apparatus