78834475
Mar 10, 2006
Equipment and devices for the protection of human eyes from radiation, namely protective eyeglasses, protective eye shields, shades and protective helmets for welders, sun glasses; optical filters, namely absorption filters, interference filters, reflection filters, infrared filters, ultraviolet filters, polarization controllable with regard to the transmission rate; equipment for the control of the rate of transmission of radiation for optical filter and filter arrays
Electrical and Scientific Apparatus