U.S. federal trademark · Serial No. 74326530 · Reg. No. 392372
equipment and devices for the protection of human eyes from radiation; namely, protective eye glasses; protective eye shields, shades and helmets for welders; sun glasses; optical filters; namely, absorption filters, interference filters, reflection filters, infrared filters, ultraviolet filters, polarization filters; optical filters and optical filter arrays which are controllable with regard to the transmission rate; equipment for the control of the rate of transmission of radiation for controllable filters and filter arrays
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