U.S. federal trademark · Serial No. 76032377 · Reg. No. 2543536
TELECOMMUNICATION DEVICES AND SYSTEMS, NAMELY AN ELECTRONIC CIRCUIT COUPLED TC A TELEPHONE LINE AND A TELEPHONE DEVICE TO HANG UP THE TELEPHONE DEVICE WHEN AN OFF-HOOK CONDITION IS DETECTED; CONFERENCE PHONES; FEATURE PHONES; CALLER IDENTIFICATION UNITS; AND AUTO DIALERS
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