U.S. federal trademark · Serial No. 75724772 · Reg. No. 2709645
COMMUNICATION EQUIPMENT AND SYSTEMS, NAMELY, ECHO CANCELLERS, MULTIPLEXERS, TRANSCEIVERS, DATA PROCESSORS AND RELATED COMPUTER HARDWARE AND COMPUTER SOFTWARE FOR CONTROLLING AND INTEGRATING SUCH EQUIPMENT INTO COMMUNICATION SYSTEMS THAT PROVIDE ECHO CANCELLATION AND OTHER VOICE QUALITY ENHANCEMENTS
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