U.S. federal trademark · Serial No. 75272286 · Reg. No. 2196779
audio conferencing system comprising speaker telephones, telephones, microphones, speakers, amplifiers, cables, microphone mixers, audio network controllers, audio processors for automatic gain controls, fidelity controls, bass, treble and volume controls, and electronic signal processors for processing digital signals
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.