U.S. federal trademark · Serial No. 79061163 · Reg. No. 3643855
Headphones; audio equipment, namely, loudspeakers, record players, amplifiers, microphones, audio equalizers adapted for use with headphones; devices for measurement, analysis and correction of acoustic parameters of electro-acoustic transducers, namely, multi-function equalizers intended for use with headphones; software for measurement, analysis and correction of acoustic parameters of electro-acoustic transducers intended for use with headphones
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