Apparatus for recording, transmission or reproduction of sound, namely, loudspeakers; headphones; microphones; loudspeaker controller; amplifier; recorded or downloadable computer programs, computer software used for operating loudspeakers, headphones, microphones, loudspeaker controllers, amplifiers

'amplifi':15,31 'apparatus':1 'comput':19,21 'control':14,30 'download':18 'headphon':11,27 'loudspeak':10,13,26,29 'microphon':12,28 'name':9 'oper':25 'program':20 'record':3,16 'reproduct':6 'softwar':22 'sound':8 'transmiss':4 'use':23

Design and development of apparatus for recording, transmission or reproduction of sound, especially in the field of loudspeakers, headphones, microphones, loudspeaker controller, amplifier

'amplifi':23 'apparatus':5 'control':22 'design':1 'develop':3 'especi':13 'field':16 'headphon':19 'loudspeak':18,21 'microphon':20 'record':7 'reproduct':10 'sound':12 'transmiss':8

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