U.S. federal trademark · Serial No. 75955721
FIBER OPTIC TELECOMMUNICATIONS SYSTEMS, NAMELY, OPTICAL CROSS-CONNECTS, OPTICAL ADD/DROP MULTI-PLEXERS, DWDM (DENSE WAVELENGTH DIVISION MULTIPLEXING) TERMINALS, SONET SWITCHES, SONET ADD/DROP MULTI-PLEXERS AND ETHERNET SWITCHES INCORPORATING DWDM, OPTICAL SWITCHING AND OPTICAL FILTERING TECHNOLOGIES FOR THE TRANSPORT AND ROUTING OF OPTICAL TELECOMMUNICATION SIGNALS
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