U.S. federal trademark · Serial No. 77057208
sound amplifying systems comprised of sound amplifiers, sound mixers, speakers and parts therefore; audio teaching systems comprised of sound amplifiers, sound mixers, speakers and parts therefore; wireless group amplification systems comprised of sound amplifiers, sound mixers, speakers; active learning systems comprised of sound amplifiers, sound mixers, speakers; feedback cancellation devices, amplifiers, radio transmitters and speakers
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.