U.S. federal trademark · Serial No. 78055971 · Reg. No. 002151371
PHOTONIC ALL-OPTICAL SWITCH AND SEMI-CONDUCTOR DEVICES; DENSE WAVELENGTH DIVISION MULTIPLEXERS, DENSE WAVELENGTH DIVISION FILTERS, AND OPTICAL SWITCHES, FOR BOTH SPATIAL AND FREQUENCY SWITCHING, AND SWITCH CARDS INCORPORATING THE AFORESAID; PROGRAMMABLE SWITCH DEVICES FOR CONNECTING THE INDIVIDUAL OPTICAL FIBERS IN INPUT AND OUTPUT BUNDLES OF FIBERS, ONE INPUT TO ONE OUTPUT, IN A VARIABLE BUT PREDETERMINED MANNER; SOFTWARE FOR CONTROLLING SUCH PROGRAMMABLE SWITCH DEVICES; ALL FOR USE BY TELECOMMUNICATIONS OPTICAL NETWORK SYSTEM EQUIPMENT PROVIDERS
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