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A kind of electrophonic musical instrument of included tone playing equipment
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A kind of electric guitar of band sound-recording function
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Audio effect device
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A kind of luminous guitar
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A kind of control device of foot-operated effect device
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A kind of portable electric guitar of band wireless transmitting function
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A kind of digital effecter and the marshalling device coordinated with it
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A kind of multi-functional audio
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A kind of guitar effect device of optimization
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Optimized electronic loudspeaker
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A kind of acoustic effecter
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Magnetic latching relay control circuit used for switching music signals
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Non-contact audio equipment volume controller and control method thereof
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Measuring method of technical parameters of delay-type audio devices of electrophone
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Photoelectric control transposer for electric guitar
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Semi-hollow suspending type adapterization electric guitar
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