85613027
May 1, 2012
Jan 15, 2013
Audio signal testing equipment and audio signal detection equipment, namely, voltage and amperage testers for testing audio signals, circuit testers, electronic testing equipment in the nature of sound level meters, distribution amplifiers for audio signals, electronic products for generation and analysis of audio signals in the nature of audio analyzers, electronic scalers and switches for audio signals, optical signaling cables, panel meters in the nature of electronic instruments that display input signals in either digital or analog forms and signal processors; electric audio signal output meters; audio signal output meters, namely, panel meters in the nature of electronic instruments that display input signals in either digital or analog forms; audio signal calibration equipment, namely, calibration devices for sound level meters for testing audio signals, electronic audio analyzers for generation and analysis of audio signals, electronic panel meters that display input signals in either digital or analog forms and electric audio signal output meters
Electrical and Scientific Apparatus