Acoustic conduits; Audio-receivers and video-receivers; Dust proof plugs for earphone jacks; Electronic book reader; Headphones; Horns for loudspeakers; Loudspeakers; Microphones; Portable media players; Radio receivers; Sound transmitting apparatus

'acoust':1 'apparatus':32 'audio':4 'audio-receiv':3 'book':17 'conduit':2 'dust':10 'earphon':14 'electron':16 'headphon':19 'horn':20 'jack':15 'loudspeak':22,23 'media':26 'microphon':24 'player':27 'plug':12 'portabl':25 'proof':11 'radio':28 'reader':18 'receiv':5,9,29 'sound':30 'transmit':31 'video':8 'video-receiv':7

IDBI

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