U.S. federal trademark · Serial No. 87897471 · Reg. No. 6130799
Audio communication device for teleconference, namely, audio communication system comprised of one or more speakerphones, microphones, and speakers connected through a communication network; audio communication device for teleconference, namely, audio communication system comprised of speakerphones connected through a communication network; audio communication device for teleconference, namely, audio communication system comprised of microphones connected through a communication network; audio communication device for teleconference, namely, audio communication system comprised of speakers connected through a communication network; audio processing device for teleconference, namely, electronic controller for speakerphones, microphones and speakers coupled to the audio communications system
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