87897471
Apr 27, 2018
Aug 18, 2020
Active Trademark
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
Electrical and Scientific Apparatus