U.S. federal trademark · Serial No. 85591974 · Reg. No. 4307935
Components made of glass, glass ceramic, quartz glass, and crystals for optical applications, namely, optical lenses and optical filters; optical lenses[; special glass and glass ceramic components for optical components, namely, lenses and rods for machines and equipment for the production of computer chips, integrated circuits and other components for digital equipment]
Calcium fluoride
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