U.S. federal trademark · Serial No. 78057158 · Reg. No. 2780618
computer hardware; optical network components, namely [multiplexes, de-multiplexes,] *multiplexers, de-multiplexers,* filters, lasers, switches, [attenuates,] *attenuators,* dispersion and polarization compensators, amplifiers, channel monitors, wavelength converters, and wavelength stabilizers
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